{"id":290812,"date":"2025-05-28T14:38:01","date_gmt":"2025-05-28T09:08:01","guid":{"rendered":"https:\/\/www.aakash.ac.in\/blog\/?p=290812"},"modified":"2025-05-28T14:38:01","modified_gmt":"2025-05-28T09:08:01","slug":"ios-important-questions-for-2025-26-exam","status":"publish","type":"post","link":"https:\/\/www.aakash.ac.in\/blog\/ios-important-questions-for-2025-26-exam\/","title":{"rendered":"iOS Important Questions for 2025-26 Exam"},"content":{"rendered":"<p><strong>iOS Important Questions for 2025-26 Exam:<\/strong> The International Olympiad of Science (iOS) is a prestigious examination conducted by the SilverZone Foundation that aims to assess the scientific knowledge and aptitude of students from Class 1 to Class 12. As the 2025-26 session approaches, students and parents are increasingly seeking structured preparation material. One of the most effective strategies for preparation is focusing on the most important questions derived from the syllabus and previous exam patterns.<\/p>\n<p>This article provides class-wise important questions for the iOS 2025-26 exam, helping students prepare efficiently and score high. Whether you&#8217;re in Class 3 or Class 12, this guide offers valuable insights into the types of questions you can expect in the upcoming exam.<\/p>\n<h2><strong>Why Focus on iOS Important Questions?<\/strong><\/h2>\n<p>Important questions are selected based on:<\/p>\n<ul data-spread=\"false\">\n<li>Analysis of past year iOS papers<\/li>\n<li>Frequently asked concepts<\/li>\n<li>Core topics from the syllabus<\/li>\n<li>Recommendations by subject experts<\/li>\n<\/ul>\n<p>Focusing on important questions improves accuracy, saves time during revision, and boosts confidence before the exam.<\/p>\n<h2><strong>Class-Wise iOS 2025-26 Important Questions<\/strong><\/h2>\n<p>Below is a breakdown of some important questions by class and subject. These are meant for reference and practice and may not be the exact questions in the exam, but they represent commonly tested concepts.<\/p>\n<h3 data-start=\"283\" data-end=\"313\">Class 1 iOS Important Questions<\/h3>\n<ol data-start=\"315\" data-end=\"1481\">\n<li data-start=\"315\" data-end=\"422\">\n<p data-start=\"318\" data-end=\"363\"><strong data-start=\"318\" data-end=\"363\">Which of the following is a living thing?<\/strong><\/p>\n<ul data-start=\"367\" data-end=\"422\">\n<li data-start=\"367\" data-end=\"378\">\n<p data-start=\"369\" data-end=\"378\">(A) Chair<\/p>\n<\/li>\n<li data-start=\"382\" data-end=\"394\">\n<p data-start=\"384\" data-end=\"394\">(B) Rabbit<\/p>\n<\/li>\n<li data-start=\"398\" data-end=\"407\">\n<p data-start=\"400\" data-end=\"407\">(C) Car<\/p>\n<\/li>\n<li data-start=\"411\" data-end=\"422\">\n<p data-start=\"413\" data-end=\"422\">(D) Table<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"424\" data-end=\"544\">\n<p data-start=\"427\" data-end=\"486\"><strong data-start=\"427\" data-end=\"486\">Which part of the plant is responsible for making food?<\/strong><\/p>\n<ul data-start=\"490\" data-end=\"544\">\n<li data-start=\"490\" data-end=\"500\">\n<p data-start=\"492\" data-end=\"500\">(A) Root<\/p>\n<\/li>\n<li data-start=\"504\" data-end=\"514\">\n<p data-start=\"506\" data-end=\"514\">(B) Stem<\/p>\n<\/li>\n<li data-start=\"518\" data-end=\"528\">\n<p data-start=\"520\" data-end=\"528\">(C) Leaf<\/p>\n<\/li>\n<li data-start=\"532\" data-end=\"544\">\n<p data-start=\"534\" data-end=\"544\">(D) Flower<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"546\" data-end=\"666\">\n<p data-start=\"549\" data-end=\"613\"><strong data-start=\"549\" data-end=\"613\">Identify the animal that can live both on land and in water.<\/strong><\/p>\n<ul data-start=\"617\" data-end=\"666\">\n<li data-start=\"617\" data-end=\"626\">\n<p data-start=\"619\" data-end=\"626\">(A) Dog<\/p>\n<\/li>\n<li data-start=\"630\" data-end=\"640\">\n<p data-start=\"632\" data-end=\"640\">(B) Frog<\/p>\n<\/li>\n<li data-start=\"644\" data-end=\"653\">\n<p data-start=\"646\" data-end=\"653\">(C) Cat<\/p>\n<\/li>\n<li data-start=\"657\" data-end=\"666\">\n<p data-start=\"659\" data-end=\"666\">(D) Cow<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"668\" data-end=\"787\">\n<p data-start=\"671\" data-end=\"719\"><strong data-start=\"671\" data-end=\"719\">Which of the following is used to tell time?<\/strong><\/p>\n<ul data-start=\"723\" data-end=\"787\">\n<li data-start=\"723\" data-end=\"740\">\n<p data-start=\"725\" data-end=\"740\">(A) Thermometer<\/p>\n<\/li>\n<li data-start=\"744\" data-end=\"755\">\n<p data-start=\"746\" data-end=\"755\">(B) Clock<\/p>\n<\/li>\n<li data-start=\"759\" data-end=\"770\">\n<p data-start=\"761\" data-end=\"770\">(C) Scale<\/p>\n<\/li>\n<li data-start=\"774\" data-end=\"787\">\n<p data-start=\"776\" data-end=\"787\">(D) Compass<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"789\" data-end=\"907\">\n<p data-start=\"792\" data-end=\"843\"><strong data-start=\"792\" data-end=\"843\">What do we wear to protect ourselves from rain?<\/strong><\/p>\n<ul data-start=\"847\" data-end=\"907\">\n<li data-start=\"847\" data-end=\"860\">\n<p data-start=\"849\" data-end=\"860\">(A) Sweater<\/p>\n<\/li>\n<li data-start=\"864\" data-end=\"878\">\n<p data-start=\"866\" data-end=\"878\">(B) Raincoat<\/p>\n<\/li>\n<li data-start=\"882\" data-end=\"891\">\n<p data-start=\"884\" data-end=\"891\">(C) Cap<\/p>\n<\/li>\n<li data-start=\"895\" data-end=\"907\">\n<p data-start=\"897\" data-end=\"907\">(D) Gloves<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"909\" data-end=\"1016\">\n<p data-start=\"912\" data-end=\"958\"><strong data-start=\"912\" data-end=\"958\">Which sense organ helps us to hear sounds?<\/strong><\/p>\n<ul data-start=\"962\" data-end=\"1016\">\n<li data-start=\"962\" data-end=\"972\">\n<p data-start=\"964\" data-end=\"972\">(A) Eyes<\/p>\n<\/li>\n<li data-start=\"976\" data-end=\"986\">\n<p data-start=\"978\" data-end=\"986\">(B) Nose<\/p>\n<\/li>\n<li data-start=\"990\" data-end=\"1000\">\n<p data-start=\"992\" data-end=\"1000\">(C) Ears<\/p>\n<\/li>\n<li data-start=\"1004\" data-end=\"1016\">\n<p data-start=\"1006\" data-end=\"1016\">(D) Tongue<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"1018\" data-end=\"1133\">\n<p data-start=\"1021\" data-end=\"1071\"><strong data-start=\"1021\" data-end=\"1071\">Which of the following is a healthy food item?<\/strong><\/p>\n<ul data-start=\"1075\" data-end=\"1133\">\n<li data-start=\"1075\" data-end=\"1086\">\n<p data-start=\"1077\" data-end=\"1086\">(A) Chips<\/p>\n<\/li>\n<li data-start=\"1090\" data-end=\"1102\">\n<p data-start=\"1092\" data-end=\"1102\">(B) Burger<\/p>\n<\/li>\n<li data-start=\"1106\" data-end=\"1118\">\n<p data-start=\"1108\" data-end=\"1118\">(C) Fruits<\/p>\n<\/li>\n<li data-start=\"1122\" data-end=\"1133\">\n<p data-start=\"1124\" data-end=\"1133\">(D) Candy<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"1135\" data-end=\"1237\">\n<p data-start=\"1138\" data-end=\"1178\"><strong data-start=\"1138\" data-end=\"1178\">Which of these is a source of light?<\/strong><\/p>\n<ul data-start=\"1182\" data-end=\"1237\">\n<li data-start=\"1182\" data-end=\"1192\">\n<p data-start=\"1184\" data-end=\"1192\">(A) Moon<\/p>\n<\/li>\n<li data-start=\"1196\" data-end=\"1205\">\n<p data-start=\"1198\" data-end=\"1205\">(B) Sun<\/p>\n<\/li>\n<li data-start=\"1209\" data-end=\"1221\">\n<p data-start=\"1211\" data-end=\"1221\">(C) Mirror<\/p>\n<\/li>\n<li data-start=\"1225\" data-end=\"1237\">\n<p data-start=\"1227\" data-end=\"1237\">(D) Window<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"1239\" data-end=\"1357\">\n<p data-start=\"1242\" data-end=\"1296\"><strong data-start=\"1242\" data-end=\"1296\">Which animal is known as the &#8216;King of the Jungle&#8217;?<\/strong><\/p>\n<ul data-start=\"1300\" data-end=\"1357\">\n<li data-start=\"1300\" data-end=\"1314\">\n<p data-start=\"1302\" data-end=\"1314\">(A) Elephant<\/p>\n<\/li>\n<li data-start=\"1318\" data-end=\"1329\">\n<p data-start=\"1320\" data-end=\"1329\">(B) Tiger<\/p>\n<\/li>\n<li data-start=\"1333\" data-end=\"1343\">\n<p data-start=\"1335\" data-end=\"1343\">(C) Lion<\/p>\n<\/li>\n<li data-start=\"1347\" data-end=\"1357\">\n<p data-start=\"1349\" data-end=\"1357\">(D) Bear<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"1359\" data-end=\"1481\">\n<p data-start=\"1363\" data-end=\"1413\"><strong data-start=\"1363\" data-end=\"1413\">Which of the following is used to clean teeth?<\/strong><\/p>\n<ul data-start=\"1418\" data-end=\"1481\">\n<li data-start=\"1418\" data-end=\"1428\">\n<p data-start=\"1420\" data-end=\"1428\">(A) Comb<\/p>\n<\/li>\n<li data-start=\"1433\" data-end=\"1449\">\n<p data-start=\"1435\" data-end=\"1449\">(B) Toothbrush<\/p>\n<\/li>\n<li data-start=\"1454\" data-end=\"1465\">\n<p data-start=\"1456\" data-end=\"1465\">(C) Spoon<\/p>\n<\/li>\n<li data-start=\"1470\" data-end=\"1481\">\n<p data-start=\"1472\" data-end=\"1481\">(D) Knife<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3 data-start=\"283\" data-end=\"313\">Class 2 iOS Important Questions<\/h3>\n<ol data-start=\"1526\" data-end=\"2658\">\n<li data-start=\"1526\" data-end=\"1630\">\n<p data-start=\"1529\" data-end=\"1571\"><strong data-start=\"1529\" data-end=\"1571\">Which of the following is a herbivore?<\/strong><\/p>\n<ul data-start=\"1575\" data-end=\"1630\">\n<li data-start=\"1575\" data-end=\"1585\">\n<p data-start=\"1577\" data-end=\"1585\">(A) Lion<\/p>\n<\/li>\n<li data-start=\"1589\" data-end=\"1598\">\n<p data-start=\"1591\" data-end=\"1598\">(B) Cow<\/p>\n<\/li>\n<li data-start=\"1602\" data-end=\"1613\">\n<p data-start=\"1604\" data-end=\"1613\">(C) Tiger<\/p>\n<\/li>\n<li data-start=\"1617\" data-end=\"1630\">\n<p data-start=\"1619\" data-end=\"1630\">(D) Leopard<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"1632\" data-end=\"1758\">\n<p data-start=\"1635\" data-end=\"1677\"><strong data-start=\"1635\" data-end=\"1677\">What do we use to measure temperature?<\/strong><\/p>\n<ul data-start=\"1681\" data-end=\"1758\">\n<li data-start=\"1681\" data-end=\"1698\">\n<p data-start=\"1683\" data-end=\"1698\">(A) Thermometer<\/p>\n<\/li>\n<li data-start=\"1702\" data-end=\"1717\">\n<p data-start=\"1704\" data-end=\"1717\">(B) Barometer<\/p>\n<\/li>\n<li data-start=\"1721\" data-end=\"1738\">\n<p data-start=\"1723\" data-end=\"1738\">(C) Speedometer<\/p>\n<\/li>\n<li data-start=\"1742\" data-end=\"1758\">\n<p data-start=\"1744\" data-end=\"1758\">(D) Hygrometer<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"1760\" data-end=\"1893\">\n<p data-start=\"1763\" data-end=\"1817\"><strong data-start=\"1763\" data-end=\"1817\">Which gas do plants release during photosynthesis?<\/strong><\/p>\n<ul data-start=\"1821\" data-end=\"1893\">\n<li data-start=\"1821\" data-end=\"1833\">\n<p data-start=\"1823\" data-end=\"1833\">(A) Oxygen<\/p>\n<\/li>\n<li data-start=\"1837\" data-end=\"1857\">\n<p data-start=\"1839\" data-end=\"1857\">(B) Carbon dioxide<\/p>\n<\/li>\n<li data-start=\"1861\" data-end=\"1875\">\n<p data-start=\"1863\" data-end=\"1875\">(C) Nitrogen<\/p>\n<\/li>\n<li data-start=\"1879\" data-end=\"1893\">\n<p data-start=\"1881\" data-end=\"1893\">(D) Hydrogen<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"1895\" data-end=\"2012\">\n<p data-start=\"1898\" data-end=\"1954\"><strong data-start=\"1898\" data-end=\"1954\">Which part of the plant absorbs water from the soil?<\/strong><\/p>\n<ul data-start=\"1958\" data-end=\"2012\">\n<li data-start=\"1958\" data-end=\"1968\">\n<p data-start=\"1960\" data-end=\"1968\">(A) Leaf<\/p>\n<\/li>\n<li data-start=\"1972\" data-end=\"1982\">\n<p data-start=\"1974\" data-end=\"1982\">(B) Stem<\/p>\n<\/li>\n<li data-start=\"1986\" data-end=\"1996\">\n<p data-start=\"1988\" data-end=\"1996\">(C) Root<\/p>\n<\/li>\n<li data-start=\"2000\" data-end=\"2012\">\n<p data-start=\"2002\" data-end=\"2012\">(D) Flower<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"2014\" data-end=\"2121\">\n<p data-start=\"2017\" data-end=\"2066\"><strong data-start=\"2017\" data-end=\"2066\">Which of the following is a non-living thing?<\/strong><\/p>\n<ul data-start=\"2070\" data-end=\"2121\">\n<li data-start=\"2070\" data-end=\"2079\">\n<p data-start=\"2072\" data-end=\"2079\">(A) Cat<\/p>\n<\/li>\n<li data-start=\"2083\" data-end=\"2093\">\n<p data-start=\"2085\" data-end=\"2093\">(B) Tree<\/p>\n<\/li>\n<li data-start=\"2097\" data-end=\"2107\">\n<p data-start=\"2099\" data-end=\"2107\">(C) Rock<\/p>\n<\/li>\n<li data-start=\"2111\" data-end=\"2121\">\n<p data-start=\"2113\" data-end=\"2121\">(D) Fish<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"2123\" data-end=\"2215\">\n<p data-start=\"2126\" data-end=\"2163\"><strong data-start=\"2126\" data-end=\"2163\">Which of these animals lays eggs?<\/strong><\/p>\n<ul data-start=\"2167\" data-end=\"2215\">\n<li data-start=\"2167\" data-end=\"2176\">\n<p data-start=\"2169\" data-end=\"2176\">(A) Cow<\/p>\n<\/li>\n<li data-start=\"2180\" data-end=\"2189\">\n<p data-start=\"2182\" data-end=\"2189\">(B) Dog<\/p>\n<\/li>\n<li data-start=\"2193\" data-end=\"2202\">\n<p data-start=\"2195\" data-end=\"2202\">(C) Hen<\/p>\n<\/li>\n<li data-start=\"2206\" data-end=\"2215\">\n<p data-start=\"2208\" data-end=\"2215\">(D) Cat<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"2217\" data-end=\"2334\">\n<p data-start=\"2220\" data-end=\"2276\"><strong data-start=\"2220\" data-end=\"2276\">Which of the following is a natural source of water?<\/strong><\/p>\n<ul data-start=\"2280\" data-end=\"2334\">\n<li data-start=\"2280\" data-end=\"2289\">\n<p data-start=\"2282\" data-end=\"2289\">(A) Tap<\/p>\n<\/li>\n<li data-start=\"2293\" data-end=\"2304\">\n<p data-start=\"2295\" data-end=\"2304\">(B) River<\/p>\n<\/li>\n<li data-start=\"2308\" data-end=\"2320\">\n<p data-start=\"2310\" data-end=\"2320\">(C) Bottle<\/p>\n<\/li>\n<li data-start=\"2324\" data-end=\"2334\">\n<p data-start=\"2326\" data-end=\"2334\">(D) Tank<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"2336\" data-end=\"2443\">\n<p data-start=\"2339\" data-end=\"2387\"><strong data-start=\"2339\" data-end=\"2387\">What is the main source of energy for Earth?<\/strong><\/p>\n<ul data-start=\"2391\" data-end=\"2443\">\n<li data-start=\"2391\" data-end=\"2401\">\n<p data-start=\"2393\" data-end=\"2401\">(A) Moon<\/p>\n<\/li>\n<li data-start=\"2405\" data-end=\"2416\">\n<p data-start=\"2407\" data-end=\"2416\">(B) Stars<\/p>\n<\/li>\n<li data-start=\"2420\" data-end=\"2429\">\n<p data-start=\"2422\" data-end=\"2429\">(C) Sun<\/p>\n<\/li>\n<li data-start=\"2433\" data-end=\"2443\">\n<p data-start=\"2435\" data-end=\"2443\">(D) Fire<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"2445\" data-end=\"2538\">\n<p data-start=\"2448\" data-end=\"2484\"><strong data-start=\"2448\" data-end=\"2484\">Which of these is a sense organ?<\/strong><\/p>\n<ul data-start=\"2488\" data-end=\"2538\">\n<li data-start=\"2488\" data-end=\"2498\">\n<p data-start=\"2490\" data-end=\"2498\">(A) Hand<\/p>\n<\/li>\n<li data-start=\"2502\" data-end=\"2511\">\n<p data-start=\"2504\" data-end=\"2511\">(B) Leg<\/p>\n<\/li>\n<li data-start=\"2515\" data-end=\"2524\">\n<p data-start=\"2517\" data-end=\"2524\">(C) Ear<\/p>\n<\/li>\n<li data-start=\"2528\" data-end=\"2538\">\n<p data-start=\"2530\" data-end=\"2538\">(D) Hair<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"2540\" data-end=\"2658\">\n<p data-start=\"2544\" data-end=\"2592\"><strong data-start=\"2544\" data-end=\"2592\">Which of the following is used to cut paper?<\/strong><\/p>\n<ul data-start=\"2597\" data-end=\"2658\">\n<li data-start=\"2597\" data-end=\"2608\">\n<p data-start=\"2599\" data-end=\"2608\">(A) Spoon<\/p>\n<\/li>\n<li data-start=\"2613\" data-end=\"2627\">\n<p data-start=\"2615\" data-end=\"2627\">(B) Scissors<\/p>\n<\/li>\n<li data-start=\"2632\" data-end=\"2642\">\n<p data-start=\"2634\" data-end=\"2642\">(C) Fork<\/p>\n<\/li>\n<li data-start=\"2647\" data-end=\"2658\">\n<p data-start=\"2649\" data-end=\"2658\">(D) Knife<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3 data-start=\"283\" data-end=\"313\">Class 3 iOS Important Questions<\/h3>\n<ol data-start=\"2699\" data-end=\"3925\">\n<li data-start=\"2699\" data-end=\"2808\">\n<p data-start=\"2702\" data-end=\"2753\"><strong data-start=\"2702\" data-end=\"2753\">Which of the following is a carnivorous animal?<\/strong><\/p>\n<ul data-start=\"2757\" data-end=\"2808\">\n<li data-start=\"2757\" data-end=\"2766\">\n<p data-start=\"2759\" data-end=\"2766\">(A) Cow<\/p>\n<\/li>\n<li data-start=\"2770\" data-end=\"2780\">\n<p data-start=\"2772\" data-end=\"2780\">(B) Goat<\/p>\n<\/li>\n<li data-start=\"2784\" data-end=\"2794\">\n<p data-start=\"2786\" data-end=\"2794\">(C) Lion<\/p>\n<\/li>\n<li data-start=\"2798\" data-end=\"2808\">\n<p data-start=\"2800\" data-end=\"2808\">(D) Deer<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"2810\" data-end=\"2956\">\n<p data-start=\"2813\" data-end=\"2869\"><strong data-start=\"2813\" data-end=\"2869\">What is the process by which plants make their food?<\/strong><\/p>\n<ul data-start=\"2873\" data-end=\"2956\">\n<li data-start=\"2873\" data-end=\"2890\">\n<p data-start=\"2875\" data-end=\"2890\">(A) Respiration<\/p>\n<\/li>\n<li data-start=\"2894\" data-end=\"2909\">\n<p data-start=\"2896\" data-end=\"2909\">(B) Digestion<\/p>\n<\/li>\n<li data-start=\"2913\" data-end=\"2933\">\n<p data-start=\"2915\" data-end=\"2933\">(C) Photosynthesis<\/p>\n<\/li>\n<li data-start=\"2937\" data-end=\"2956\">\n<p data-start=\"2939\" data-end=\"2956\">(D) Transpiration<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"2958\" data-end=\"3077\">\n<p data-start=\"2961\" data-end=\"3017\"><strong data-start=\"2961\" data-end=\"3017\">Which part of the human body helps in pumping blood?<\/strong><\/p>\n<ul data-start=\"3021\" data-end=\"3077\">\n<li data-start=\"3021\" data-end=\"3032\">\n<p data-start=\"3023\" data-end=\"3032\">(A) Lungs<\/p>\n<\/li>\n<li data-start=\"3036\" data-end=\"3047\">\n<p data-start=\"3038\" data-end=\"3047\">(B) Brain<\/p>\n<\/li>\n<li data-start=\"3051\" data-end=\"3062\">\n<p data-start=\"3053\" data-end=\"3062\">(C) Heart<\/p>\n<\/li>\n<li data-start=\"3066\" data-end=\"3077\">\n<p data-start=\"3068\" data-end=\"3077\">(D) Liver<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"3079\" data-end=\"3195\">\n<p data-start=\"3082\" data-end=\"3133\"><strong data-start=\"3082\" data-end=\"3133\">Which of these is a renewable source of energy?<\/strong><\/p>\n<ul data-start=\"3137\" data-end=\"3195\">\n<li data-start=\"3137\" data-end=\"3147\">\n<p data-start=\"3139\" data-end=\"3147\">(A) Coal<\/p>\n<\/li>\n<li data-start=\"3151\" data-end=\"3160\">\n<p data-start=\"3153\" data-end=\"3160\">(B) Oil<\/p>\n<\/li>\n<li data-start=\"3164\" data-end=\"3174\">\n<p data-start=\"3166\" data-end=\"3174\">(C) Wind<\/p>\n<\/li>\n<li data-start=\"3178\" data-end=\"3195\">\n<p data-start=\"3180\" data-end=\"3195\">(D) Natural Gas<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"3197\" data-end=\"3325\">\n<p data-start=\"3200\" data-end=\"3253\"><strong data-start=\"3200\" data-end=\"3253\">Which of the following is a solid state of water?<\/strong><\/p>\n<ul data-start=\"3257\" data-end=\"3325\">\n<li data-start=\"3257\" data-end=\"3268\">\n<p data-start=\"3259\" data-end=\"3268\">(A) Steam<\/p>\n<\/li>\n<li data-start=\"3272\" data-end=\"3281\">\n<p data-start=\"3274\" data-end=\"3281\">(B) Ice<\/p>\n<\/li>\n<li data-start=\"3285\" data-end=\"3302\">\n<p data-start=\"3287\" data-end=\"3302\">(C) Water vapor<\/p>\n<\/li>\n<li data-start=\"3306\" data-end=\"3325\">\n<p data-start=\"3308\" data-end=\"3325\">(D) None of these<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"3327\" data-end=\"3437\">\n<p data-start=\"3330\" data-end=\"3376\"><strong data-start=\"3330\" data-end=\"3376\">Which planet is known as the &#8216;Red Planet&#8217;?<\/strong><\/p>\n<ul data-start=\"3380\" data-end=\"3437\">\n<li data-start=\"3380\" data-end=\"3391\">\n<p data-start=\"3382\" data-end=\"3391\">(A) Earth<\/p>\n<\/li>\n<li data-start=\"3395\" data-end=\"3405\">\n<p data-start=\"3397\" data-end=\"3405\">(B) Mars<\/p>\n<\/li>\n<li data-start=\"3409\" data-end=\"3422\">\n<p data-start=\"3411\" data-end=\"3422\">(C) Jupiter<\/p>\n<\/li>\n<li data-start=\"3426\" data-end=\"3437\">\n<p data-start=\"3428\" data-end=\"3437\">(D) Venus<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"3439\" data-end=\"3543\">\n<p data-start=\"3442\" data-end=\"3482\"><strong data-start=\"3442\" data-end=\"3482\">Which of these animals is a reptile?<\/strong><\/p>\n<ul data-start=\"3486\" data-end=\"3543\">\n<li data-start=\"3486\" data-end=\"3496\">\n<p data-start=\"3488\" data-end=\"3496\">(A) Frog<\/p>\n<\/li>\n<li data-start=\"3500\" data-end=\"3511\">\n<p data-start=\"3502\" data-end=\"3511\">(B) Snake<\/p>\n<\/li>\n<li data-start=\"3515\" data-end=\"3526\">\n<p data-start=\"3517\" data-end=\"3526\">(C) Whale<\/p>\n<\/li>\n<li data-start=\"3530\" data-end=\"3543\">\n<p data-start=\"3532\" data-end=\"3543\">(D) Penguin<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"3545\" data-end=\"3690\">\n<p data-start=\"3548\" data-end=\"3609\"><strong data-start=\"3548\" data-end=\"3609\">What do we call animals that eat both plants and animals?<\/strong><\/p>\n<ul data-start=\"3613\" data-end=\"3690\">\n<li data-start=\"3613\" data-end=\"3629\">\n<p data-start=\"3615\" data-end=\"3629\">(A) Herbivores<\/p>\n<\/li>\n<li data-start=\"3633\" data-end=\"3649\">\n<p data-start=\"3635\" data-end=\"3649\">(B) Carnivores<\/p>\n<\/li>\n<li data-start=\"3653\" data-end=\"3668\">\n<p data-start=\"3655\" data-end=\"3668\">(C) Omnivores<\/p>\n<\/li>\n<li data-start=\"3672\" data-end=\"3690\">\n<p data-start=\"3674\" data-end=\"3690\">(D) Insectivores<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"3692\" data-end=\"3811\">\n<p data-start=\"3695\" data-end=\"3749\"><strong data-start=\"3695\" data-end=\"3749\">Which of the following helps in digestion of food?<\/strong><\/p>\n<ul data-start=\"3753\" data-end=\"3811\">\n<li data-start=\"3753\" data-end=\"3764\">\n<p data-start=\"3755\" data-end=\"3764\">(A) Heart<\/p>\n<\/li>\n<li data-start=\"3768\" data-end=\"3779\">\n<p data-start=\"3770\" data-end=\"3779\">(B) Lungs<\/p>\n<\/li>\n<li data-start=\"3783\" data-end=\"3796\">\n<p data-start=\"3785\" data-end=\"3796\">(C) Stomach<\/p>\n<\/li>\n<li data-start=\"3800\" data-end=\"3811\">\n<p data-start=\"3802\" data-end=\"3811\">(D) Brain<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"3813\" data-end=\"3925\">\n<p data-start=\"3817\" data-end=\"3866\"><strong data-start=\"3817\" data-end=\"3866\">Which of these is a man-made source of light?<\/strong><\/p>\n<ul data-start=\"3871\" data-end=\"3925\">\n<li data-start=\"3871\" data-end=\"3880\">\n<p data-start=\"3873\" data-end=\"3880\">(A) Sun<\/p>\n<\/li>\n<li data-start=\"3885\" data-end=\"3895\">\n<p data-start=\"3887\" data-end=\"3895\">(B) Moon<\/p>\n<\/li>\n<li data-start=\"3900\" data-end=\"3910\">\n<p data-start=\"3902\" data-end=\"3910\">(C) Lamp<\/p>\n<\/li>\n<li data-start=\"3915\" data-end=\"3925\">\n<p data-start=\"3917\" data-end=\"3925\">(D) Star<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3 data-start=\"283\" data-end=\"313\">Class 4 iOS Important Questions<\/h3>\n<ol data-start=\"3967\" data-end=\"5197\">\n<li data-start=\"3967\" data-end=\"4090\">\n<p data-start=\"3970\" data-end=\"4027\"><strong data-start=\"3970\" data-end=\"4027\">Which of the following is a conductor of electricity?<\/strong><\/p>\n<ul data-start=\"4031\" data-end=\"4090\">\n<li data-start=\"4031\" data-end=\"4044\">\n<p data-start=\"4033\" data-end=\"4044\">(A) Plastic<\/p>\n<\/li>\n<li data-start=\"4048\" data-end=\"4058\">\n<p data-start=\"4050\" data-end=\"4058\">(B) Wood<\/p>\n<\/li>\n<li data-start=\"4062\" data-end=\"4074\">\n<p data-start=\"4064\" data-end=\"4074\">(C) Copper<\/p>\n<\/li>\n<li data-start=\"4078\" data-end=\"4090\">\n<p data-start=\"4080\" data-end=\"4090\">(D) Rubber<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"4092\" data-end=\"4191\">\n<p data-start=\"4095\" data-end=\"4134\"><strong data-start=\"4095\" data-end=\"4134\">What is the boiling point of water?<\/strong><\/p>\n<ul data-start=\"4138\" data-end=\"4191\">\n<li data-start=\"4138\" data-end=\"4147\">\n<p data-start=\"4140\" data-end=\"4147\">(A) 0\u00b0C<\/p>\n<\/li>\n<li data-start=\"4151\" data-end=\"4161\">\n<p data-start=\"4153\" data-end=\"4161\">(B) 50\u00b0C<\/p>\n<\/li>\n<li data-start=\"4165\" data-end=\"4176\">\n<p data-start=\"4167\" data-end=\"4176\">(C) 100\u00b0C<\/p>\n<\/li>\n<li data-start=\"4180\" data-end=\"4191\">\n<p data-start=\"4182\" data-end=\"4191\">(D) 212\u00b0C<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"4193\" data-end=\"4321\">\n<p data-start=\"4196\" data-end=\"4245\"><strong data-start=\"4196\" data-end=\"4245\">Which gas is essential for human respiration?<\/strong><\/p>\n<ul data-start=\"4249\" data-end=\"4321\">\n<li data-start=\"4249\" data-end=\"4263\">\n<p data-start=\"4251\" data-end=\"4263\">(A) Nitrogen<\/p>\n<\/li>\n<li data-start=\"4267\" data-end=\"4279\">\n<p data-start=\"4269\" data-end=\"4279\">(B) Oxygen<\/p>\n<\/li>\n<li data-start=\"4283\" data-end=\"4303\">\n<p data-start=\"4285\" data-end=\"4303\">(C) Carbon dioxide<\/p>\n<\/li>\n<li data-start=\"4307\" data-end=\"4321\">\n<p data-start=\"4309\" data-end=\"4321\">(D) Hydrogen<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"4323\" data-end=\"4456\">\n<p data-start=\"4326\" data-end=\"4395\"><strong data-start=\"4326\" data-end=\"4395\">Which organ is responsible for filtering blood in the human body?<\/strong><\/p>\n<ul data-start=\"4399\" data-end=\"4456\">\n<li data-start=\"4399\" data-end=\"4410\">\n<p data-start=\"4401\" data-end=\"4410\">(A) Heart<\/p>\n<\/li>\n<li data-start=\"4414\" data-end=\"4425\">\n<p data-start=\"4416\" data-end=\"4425\">(B) Liver<\/p>\n<\/li>\n<li data-start=\"4429\" data-end=\"4441\">\n<p data-start=\"4431\" data-end=\"4441\">(C) Kidney<\/p>\n<\/li>\n<li data-start=\"4445\" data-end=\"4456\">\n<p data-start=\"4447\" data-end=\"4456\">(D) Lungs<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"4458\" data-end=\"4582\">\n<p data-start=\"4461\" data-end=\"4524\"><strong data-start=\"4461\" data-end=\"4524\">Which of the following is a non-renewable source of energy?<\/strong><\/p>\n<ul data-start=\"4528\" data-end=\"4582\">\n<li data-start=\"4528\" data-end=\"4539\">\n<p data-start=\"4530\" data-end=\"4539\">(A) Solar<\/p>\n<\/li>\n<li data-start=\"4543\" data-end=\"4553\">\n<p data-start=\"4545\" data-end=\"4553\">(B) Wind<\/p>\n<\/li>\n<li data-start=\"4557\" data-end=\"4567\">\n<p data-start=\"4559\" data-end=\"4567\">(C) Coal<\/p>\n<\/li>\n<li data-start=\"4571\" data-end=\"4582\">\n<p data-start=\"4573\" data-end=\"4582\">(D) Hydro<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"4584\" data-end=\"4734\">\n<p data-start=\"4587\" data-end=\"4647\"><strong data-start=\"4587\" data-end=\"4647\">What is the process of water changing into vapor called?<\/strong><\/p>\n<ul data-start=\"4651\" data-end=\"4734\">\n<li data-start=\"4651\" data-end=\"4669\">\n<p data-start=\"4653\" data-end=\"4669\">(A) Condensation<\/p>\n<\/li>\n<li data-start=\"4673\" data-end=\"4690\">\n<p data-start=\"4675\" data-end=\"4690\">(B) Evaporation<\/p>\n<\/li>\n<li data-start=\"4694\" data-end=\"4713\">\n<p data-start=\"4696\" data-end=\"4713\">(C) Precipitation<\/p>\n<\/li>\n<li data-start=\"4717\" data-end=\"4734\">\n<p data-start=\"4719\" data-end=\"4734\">(D) Sublimation<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"4736\" data-end=\"4862\">\n<p data-start=\"4739\" data-end=\"4803\"><strong data-start=\"4739\" data-end=\"4803\">Which part of the plant conducts water from roots to leaves?<\/strong><\/p>\n<ul data-start=\"4807\" data-end=\"4862\">\n<li data-start=\"4807\" data-end=\"4817\">\n<p data-start=\"4809\" data-end=\"4817\">(A) Stem<\/p>\n<\/li>\n<li data-start=\"4821\" data-end=\"4831\">\n<p data-start=\"4823\" data-end=\"4831\">(B) Leaf<\/p>\n<\/li>\n<li data-start=\"4835\" data-end=\"4847\">\n<p data-start=\"4837\" data-end=\"4847\">(C) Flower<\/p>\n<\/li>\n<li data-start=\"4851\" data-end=\"4862\">\n<p data-start=\"4853\" data-end=\"4862\">(D) Fruit<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"4864\" data-end=\"4967\">\n<p data-start=\"4867\" data-end=\"4902\"><strong data-start=\"4867\" data-end=\"4902\">Which of these is a vertebrate?<\/strong><\/p>\n<ul data-start=\"4906\" data-end=\"4967\">\n<li data-start=\"4906\" data-end=\"4921\">\n<p data-start=\"4908\" data-end=\"4921\">(A) Earthworm<\/p>\n<\/li>\n<li data-start=\"4925\" data-end=\"4936\">\n<p data-start=\"4927\" data-end=\"4936\">(B) Snail<\/p>\n<\/li>\n<li data-start=\"4940\" data-end=\"4950\">\n<p data-start=\"4942\" data-end=\"4950\">(C) Fish<\/p>\n<\/li>\n<li data-start=\"4954\" data-end=\"4967\">\n<p data-start=\"4956\" data-end=\"4967\">(D) Octopus<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"4969\" data-end=\"5087\">\n<p data-start=\"4972\" data-end=\"5031\"><strong data-start=\"4972\" data-end=\"5031\">Which of the following is a natural satellite of Earth?<\/strong><\/p>\n<ul data-start=\"5035\" data-end=\"5087\">\n<li data-start=\"5035\" data-end=\"5045\">\n<p data-start=\"5037\" data-end=\"5045\">(A) Mars<\/p>\n<\/li>\n<li data-start=\"5049\" data-end=\"5058\">\n<p data-start=\"5051\" data-end=\"5058\">(B) Sun<\/p>\n<\/li>\n<li data-start=\"5062\" data-end=\"5072\">\n<p data-start=\"5064\" data-end=\"5072\">(C) Moon<\/p>\n<\/li>\n<li data-start=\"5076\" data-end=\"5087\">\n<p data-start=\"5078\" data-end=\"5087\">(D) Venus<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"5089\" data-end=\"5197\">\n<p data-start=\"5093\" data-end=\"5132\"><strong data-start=\"5093\" data-end=\"5132\">Which of these is a simple machine?<\/strong><\/p>\n<ul data-start=\"5137\" data-end=\"5197\">\n<li data-start=\"5137\" data-end=\"5146\">\n<p data-start=\"5139\" data-end=\"5146\">(A) Car<\/p>\n<\/li>\n<li data-start=\"5151\" data-end=\"5164\">\n<p data-start=\"5153\" data-end=\"5164\">(B) Bicycle<\/p>\n<\/li>\n<li data-start=\"5169\" data-end=\"5180\">\n<p data-start=\"5171\" data-end=\"5180\">(C) Lever<\/p>\n<\/li>\n<li data-start=\"5185\" data-end=\"5197\">\n<p data-start=\"5187\" data-end=\"5197\">(D) Engine<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3 data-start=\"283\" data-end=\"313\">Class 5 iOS Important Questions<\/h3>\n<ol data-start=\"5242\" data-end=\"6590\">\n<li data-start=\"5242\" data-end=\"5376\">\n<p data-start=\"5245\" data-end=\"5298\"><strong data-start=\"5245\" data-end=\"5298\">Which of the following is a communicable disease?<\/strong><\/p>\n<ul data-start=\"5302\" data-end=\"5376\">\n<li data-start=\"5302\" data-end=\"5316\">\n<p data-start=\"5304\" data-end=\"5316\">(A) Diabetes<\/p>\n<\/li>\n<li data-start=\"5320\" data-end=\"5332\">\n<p data-start=\"5322\" data-end=\"5332\">(B) Cancer<\/p>\n<\/li>\n<li data-start=\"5336\" data-end=\"5354\">\n<p data-start=\"5338\" data-end=\"5354\">(C) Tuberculosis<\/p>\n<\/li>\n<li data-start=\"5358\" data-end=\"5376\">\n<p data-start=\"5360\" data-end=\"5376\">(D) Hypertension<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"5378\" data-end=\"5524\">\n<p data-start=\"5381\" data-end=\"5432\"><strong data-start=\"5381\" data-end=\"5432\">What is the main function of white blood cells?<\/strong><\/p>\n<ul data-start=\"5436\" data-end=\"5524\">\n<li data-start=\"5436\" data-end=\"5454\">\n<p data-start=\"5438\" data-end=\"5454\">(A) Carry oxygen<\/p>\n<\/li>\n<li data-start=\"5458\" data-end=\"5480\">\n<p data-start=\"5460\" data-end=\"5480\">(B) Fight infections<\/p>\n<\/li>\n<li data-start=\"5484\" data-end=\"5500\">\n<p data-start=\"5486\" data-end=\"5500\">(C) Clot blood<\/p>\n<\/li>\n<li data-start=\"5504\" data-end=\"5524\">\n<p data-start=\"5506\" data-end=\"5524\">(D) Provide energy<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"5526\" data-end=\"5649\">\n<p data-start=\"5529\" data-end=\"5578\"><strong data-start=\"5529\" data-end=\"5578\">Which of the following is a metamorphic rock?<\/strong><\/p>\n<ul data-start=\"5582\" data-end=\"5649\">\n<li data-start=\"5582\" data-end=\"5595\">\n<p data-start=\"5584\" data-end=\"5595\">(A) Granite<\/p>\n<\/li>\n<li data-start=\"5599\" data-end=\"5611\">\n<p data-start=\"5601\" data-end=\"5611\">(B) Marble<\/p>\n<\/li>\n<li data-start=\"5615\" data-end=\"5630\">\n<p data-start=\"5617\" data-end=\"5630\">(C) Sandstone<\/p>\n<\/li>\n<li data-start=\"5634\" data-end=\"5649\">\n<p data-start=\"5636\" data-end=\"5649\">(D) Limestone<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"5651\" data-end=\"5765\">\n<p data-start=\"5654\" data-end=\"5703\"><strong data-start=\"5654\" data-end=\"5703\">Which planet has the largest number of moons?<\/strong><\/p>\n<ul data-start=\"5707\" data-end=\"5765\">\n<li data-start=\"5707\" data-end=\"5718\">\n<p data-start=\"5709\" data-end=\"5718\">(A) Earth<\/p>\n<\/li>\n<li data-start=\"5722\" data-end=\"5732\">\n<p data-start=\"5724\" data-end=\"5732\">(B) Mars<\/p>\n<\/li>\n<li data-start=\"5736\" data-end=\"5749\">\n<p data-start=\"5738\" data-end=\"5749\">(C) Jupiter<\/p>\n<\/li>\n<li data-start=\"5753\" data-end=\"5765\">\n<p data-start=\"5755\" data-end=\"5765\">(D) Saturn<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"5767\" data-end=\"5901\">\n<p data-start=\"5770\" data-end=\"5810\"><strong data-start=\"5770\" data-end=\"5810\">Which of these is a chemical change?<\/strong><\/p>\n<ul data-start=\"5814\" data-end=\"5901\">\n<li data-start=\"5814\" data-end=\"5831\">\n<p data-start=\"5816\" data-end=\"5831\">(A) Melting ice<\/p>\n<\/li>\n<li data-start=\"5835\" data-end=\"5854\">\n<p data-start=\"5837\" data-end=\"5854\">(B) Boiling water<\/p>\n<\/li>\n<li data-start=\"5858\" data-end=\"5877\">\n<p data-start=\"5860\" data-end=\"5877\">(C) Burning paper<\/p>\n<\/li>\n<li data-start=\"5881\" data-end=\"5901\">\n<p data-start=\"5883\" data-end=\"5901\">(D) Breaking glass<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"5903\" data-end=\"6052\">\n<p data-start=\"5906\" data-end=\"5950\"><strong data-start=\"5906\" data-end=\"5950\">What is the function of the ozone layer?<\/strong><\/p>\n<ul data-start=\"5954\" data-end=\"6052\">\n<li data-start=\"5954\" data-end=\"5976\">\n<p data-start=\"5956\" data-end=\"5976\">(A) Reflect sunlight<\/p>\n<\/li>\n<li data-start=\"5980\" data-end=\"5995\">\n<p data-start=\"5982\" data-end=\"5995\">(B) Trap heat<\/p>\n<\/li>\n<li data-start=\"5999\" data-end=\"6028\">\n<p data-start=\"6001\" data-end=\"6028\">(C) Absorb ultraviolet rays<\/p>\n<\/li>\n<li data-start=\"6032\" data-end=\"6052\">\n<p data-start=\"6034\" data-end=\"6052\">(D) Provide oxygen<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"6054\" data-end=\"6184\">\n<p data-start=\"6057\" data-end=\"6108\"><strong data-start=\"6057\" data-end=\"6108\">Which of the following is a renewable resource?<\/strong><\/p>\n<ul data-start=\"6112\" data-end=\"6184\">\n<li data-start=\"6112\" data-end=\"6127\">\n<p data-start=\"6114\" data-end=\"6127\">(A) Petroleum<\/p>\n<\/li>\n<li data-start=\"6131\" data-end=\"6141\">\n<p data-start=\"6133\" data-end=\"6141\">(B) Coal<\/p>\n<\/li>\n<li data-start=\"6145\" data-end=\"6162\">\n<p data-start=\"6147\" data-end=\"6162\">(C) Natural gas<\/p>\n<\/li>\n<li data-start=\"6166\" data-end=\"6184\">\n<p data-start=\"6168\" data-end=\"6184\">(D) Solar energy<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"6186\" data-end=\"6310\">\n<p data-start=\"6189\" data-end=\"6247\"><strong data-start=\"6189\" data-end=\"6247\">What is the main source of energy for the water cycle?<\/strong><\/p>\n<ul data-start=\"6251\" data-end=\"6310\">\n<li data-start=\"6251\" data-end=\"6261\">\n<p data-start=\"6253\" data-end=\"6261\">(A) Wind<\/p>\n<\/li>\n<li data-start=\"6265\" data-end=\"6274\">\n<p data-start=\"6267\" data-end=\"6274\">(B) Sun<\/p>\n<\/li>\n<li data-start=\"6278\" data-end=\"6288\">\n<p data-start=\"6280\" data-end=\"6288\">(C) Moon<\/p>\n<\/li>\n<li data-start=\"6292\" data-end=\"6310\">\n<p data-start=\"6294\" data-end=\"6310\">(D) Earth\u2019s core<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"6312\" data-end=\"6464\">\n<p data-start=\"6315\" data-end=\"6376\"><strong data-start=\"6315\" data-end=\"6376\">Which organelle is known as the &#8216;powerhouse of the cell&#8217;?<\/strong><\/p>\n<ul data-start=\"6380\" data-end=\"6464\">\n<li data-start=\"6380\" data-end=\"6393\">\n<p data-start=\"6382\" data-end=\"6393\">(A) Nucleus<\/p>\n<\/li>\n<li data-start=\"6397\" data-end=\"6415\">\n<p data-start=\"6399\" data-end=\"6415\">(B) Mitochondria<\/p>\n<\/li>\n<li data-start=\"6419\" data-end=\"6433\">\n<p data-start=\"6421\" data-end=\"6433\">(C) Ribosome<\/p>\n<\/li>\n<li data-start=\"6437\" data-end=\"6464\">\n<p data-start=\"6439\" data-end=\"6464\">(D) Endoplasmic reticulum<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"6466\" data-end=\"6590\">\n<p data-start=\"6470\" data-end=\"6527\"><strong data-start=\"6470\" data-end=\"6527\">Which of the following is used to measure wind speed?<\/strong><\/p>\n<ul data-start=\"6532\" data-end=\"6590\">\n<li data-start=\"6532\" data-end=\"6549\">\n<p data-start=\"6534\" data-end=\"6549\">(A) Thermometer<\/p>\n<\/li>\n<li data-start=\"6554\" data-end=\"6569\">\n<p data-start=\"6556\" data-end=\"6569\">(B) Barometer<\/p>\n<\/li>\n<li data-start=\"6574\" data-end=\"6590\">\n<p data-start=\"6576\" data-end=\"6590\">(C) Anemometer<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3 data-start=\"283\" data-end=\"313\">Class 6 iOS Important Questions<\/h3>\n<ol data-start=\"309\" data-end=\"1703\">\n<li data-start=\"309\" data-end=\"453\">\n<p data-start=\"312\" data-end=\"380\"><strong data-start=\"312\" data-end=\"380\">Which component of food is essential for body growth and repair?<\/strong><\/p>\n<ul data-start=\"384\" data-end=\"453\">\n<li data-start=\"384\" data-end=\"403\">\n<p data-start=\"386\" data-end=\"403\">(A) Carbohydrates<\/p>\n<\/li>\n<li data-start=\"407\" data-end=\"417\">\n<p data-start=\"409\" data-end=\"417\">(B) Fats<\/p>\n<\/li>\n<li data-start=\"421\" data-end=\"435\">\n<p data-start=\"423\" data-end=\"435\">(C) Proteins<\/p>\n<\/li>\n<li data-start=\"439\" data-end=\"453\">\n<p data-start=\"441\" data-end=\"453\">(D) Vitamins<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"455\" data-end=\"616\">\n<p data-start=\"458\" data-end=\"531\"><strong data-start=\"458\" data-end=\"531\">Which process separates solid particles from a liquid using a filter?<\/strong><\/p>\n<ul data-start=\"535\" data-end=\"616\">\n<li data-start=\"535\" data-end=\"554\">\n<p data-start=\"537\" data-end=\"554\">(A) Sedimentation<\/p>\n<\/li>\n<li data-start=\"558\" data-end=\"574\">\n<p data-start=\"560\" data-end=\"574\">(B) Filtration<\/p>\n<\/li>\n<li data-start=\"578\" data-end=\"595\">\n<p data-start=\"580\" data-end=\"595\">(C) Decantation<\/p>\n<\/li>\n<li data-start=\"599\" data-end=\"616\">\n<p data-start=\"601\" data-end=\"616\">(D) Evaporation<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"618\" data-end=\"766\">\n<p data-start=\"621\" data-end=\"665\"><strong data-start=\"621\" data-end=\"665\">What is the function of xylem in plants?<\/strong><\/p>\n<ul data-start=\"669\" data-end=\"766\">\n<li data-start=\"669\" data-end=\"692\">\n<p data-start=\"671\" data-end=\"692\">(A) Transport of food<\/p>\n<\/li>\n<li data-start=\"696\" data-end=\"720\">\n<p data-start=\"698\" data-end=\"720\">(B) Transport of water<\/p>\n<\/li>\n<li data-start=\"724\" data-end=\"744\">\n<p data-start=\"726\" data-end=\"744\">(C) Photosynthesis<\/p>\n<\/li>\n<li data-start=\"748\" data-end=\"766\">\n<p data-start=\"750\" data-end=\"766\">(D) Reproduction<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"768\" data-end=\"904\">\n<p data-start=\"771\" data-end=\"821\"><strong data-start=\"771\" data-end=\"821\">Which of the following is a non-contact force?<\/strong><\/p>\n<ul data-start=\"825\" data-end=\"904\">\n<li data-start=\"825\" data-end=\"839\">\n<p data-start=\"827\" data-end=\"839\">(A) Friction<\/p>\n<\/li>\n<li data-start=\"843\" data-end=\"863\">\n<p data-start=\"845\" data-end=\"863\">(B) Muscular force<\/p>\n<\/li>\n<li data-start=\"867\" data-end=\"887\">\n<p data-start=\"869\" data-end=\"887\">(C) Magnetic force<\/p>\n<\/li>\n<li data-start=\"891\" data-end=\"904\">\n<p data-start=\"893\" data-end=\"904\">(D) Tension<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"906\" data-end=\"1026\">\n<p data-start=\"909\" data-end=\"963\"><strong data-start=\"909\" data-end=\"963\">Which of these is a good conductor of electricity?<\/strong><\/p>\n<ul data-start=\"967\" data-end=\"1026\">\n<li data-start=\"967\" data-end=\"980\">\n<p data-start=\"969\" data-end=\"980\">(A) Plastic<\/p>\n<\/li>\n<li data-start=\"984\" data-end=\"994\">\n<p data-start=\"986\" data-end=\"994\">(B) Wood<\/p>\n<\/li>\n<li data-start=\"998\" data-end=\"1010\">\n<p data-start=\"1000\" data-end=\"1010\">(C) Copper<\/p>\n<\/li>\n<li data-start=\"1014\" data-end=\"1026\">\n<p data-start=\"1016\" data-end=\"1026\">(D) Rubber<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"1028\" data-end=\"1142\">\n<p data-start=\"1031\" data-end=\"1083\"><strong data-start=\"1031\" data-end=\"1083\">What is the boiling point of water at sea level?<\/strong><\/p>\n<ul data-start=\"1087\" data-end=\"1142\">\n<li data-start=\"1087\" data-end=\"1097\">\n<p data-start=\"1089\" data-end=\"1097\">(A) 90\u00b0C<\/p>\n<\/li>\n<li data-start=\"1101\" data-end=\"1112\">\n<p data-start=\"1103\" data-end=\"1112\">(B) 100\u00b0C<\/p>\n<\/li>\n<li data-start=\"1116\" data-end=\"1127\">\n<p data-start=\"1118\" data-end=\"1127\">(C) 110\u00b0C<\/p>\n<\/li>\n<li data-start=\"1131\" data-end=\"1142\">\n<p data-start=\"1133\" data-end=\"1142\">(D) 120\u00b0C<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"1144\" data-end=\"1265\">\n<p data-start=\"1147\" data-end=\"1189\"><strong data-start=\"1147\" data-end=\"1189\">Which gas is essential for combustion?<\/strong><\/p>\n<ul data-start=\"1193\" data-end=\"1265\">\n<li data-start=\"1193\" data-end=\"1207\">\n<p data-start=\"1195\" data-end=\"1207\">(A) Nitrogen<\/p>\n<\/li>\n<li data-start=\"1211\" data-end=\"1223\">\n<p data-start=\"1213\" data-end=\"1223\">(B) Oxygen<\/p>\n<\/li>\n<li data-start=\"1227\" data-end=\"1247\">\n<p data-start=\"1229\" data-end=\"1247\">(C) Carbon dioxide<\/p>\n<\/li>\n<li data-start=\"1251\" data-end=\"1265\">\n<p data-start=\"1253\" data-end=\"1265\">(D) Hydrogen<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"1267\" data-end=\"1420\">\n<p data-start=\"1270\" data-end=\"1320\"><strong data-start=\"1270\" data-end=\"1320\">Which of the following is a reversible change?<\/strong><\/p>\n<ul data-start=\"1324\" data-end=\"1420\">\n<li data-start=\"1324\" data-end=\"1346\">\n<p data-start=\"1326\" data-end=\"1346\">(A) Burning of paper<\/p>\n<\/li>\n<li data-start=\"1350\" data-end=\"1370\">\n<p data-start=\"1352\" data-end=\"1370\">(B) Melting of ice<\/p>\n<\/li>\n<li data-start=\"1374\" data-end=\"1395\">\n<p data-start=\"1376\" data-end=\"1395\">(C) Rusting of iron<\/p>\n<\/li>\n<li data-start=\"1399\" data-end=\"1420\">\n<p data-start=\"1401\" data-end=\"1420\">(D) Cooking of food<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"1422\" data-end=\"1574\">\n<p data-start=\"1425\" data-end=\"1486\"><strong data-start=\"1425\" data-end=\"1486\">Which organelle is known as the &#8216;powerhouse of the cell&#8217;?<\/strong><\/p>\n<ul data-start=\"1490\" data-end=\"1574\">\n<li data-start=\"1490\" data-end=\"1503\">\n<p data-start=\"1492\" data-end=\"1503\">(A) Nucleus<\/p>\n<\/li>\n<li data-start=\"1507\" data-end=\"1525\">\n<p data-start=\"1509\" data-end=\"1525\">(B) Mitochondria<\/p>\n<\/li>\n<li data-start=\"1529\" data-end=\"1543\">\n<p data-start=\"1531\" data-end=\"1543\">(C) Ribosome<\/p>\n<\/li>\n<li data-start=\"1547\" data-end=\"1574\">\n<p data-start=\"1549\" data-end=\"1574\">(D) Endoplasmic reticulum<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"1576\" data-end=\"1703\">\n<p data-start=\"1580\" data-end=\"1635\"><strong data-start=\"1580\" data-end=\"1635\">What is the primary source of energy for the Earth?<\/strong><\/p>\n<ul data-start=\"1640\" data-end=\"1703\">\n<li data-start=\"1640\" data-end=\"1650\">\n<p data-start=\"1642\" data-end=\"1650\">(A) Moon<\/p>\n<\/li>\n<li data-start=\"1655\" data-end=\"1666\">\n<p data-start=\"1657\" data-end=\"1666\">(B) Stars<\/p>\n<\/li>\n<li data-start=\"1671\" data-end=\"1680\">\n<p data-start=\"1673\" data-end=\"1680\">(C) Sun<\/p>\n<\/li>\n<li data-start=\"1685\" data-end=\"1703\">\n<p data-start=\"1687\" data-end=\"1703\">(D) Earth\u2019s core<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3 data-start=\"283\" data-end=\"313\">Class 7 iOS Important Questions<\/h3>\n<ol data-start=\"1748\" data-end=\"3117\">\n<li data-start=\"1748\" data-end=\"1900\">\n<p data-start=\"1751\" data-end=\"1799\"><strong data-start=\"1751\" data-end=\"1799\">Which of the following is a physical change?<\/strong><\/p>\n<ul data-start=\"1803\" data-end=\"1900\">\n<li data-start=\"1803\" data-end=\"1824\">\n<p data-start=\"1805\" data-end=\"1824\">(A) Burning of wood<\/p>\n<\/li>\n<li data-start=\"1828\" data-end=\"1849\">\n<p data-start=\"1830\" data-end=\"1849\">(B) Rusting of iron<\/p>\n<\/li>\n<li data-start=\"1853\" data-end=\"1873\">\n<p data-start=\"1855\" data-end=\"1873\">(C) Melting of ice<\/p>\n<\/li>\n<li data-start=\"1877\" data-end=\"1900\">\n<p data-start=\"1879\" data-end=\"1900\">(D) Digestion of food<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"1902\" data-end=\"1999\">\n<p data-start=\"1905\" data-end=\"1938\"><strong data-start=\"1905\" data-end=\"1938\">What is the SI unit of force?<\/strong><\/p>\n<ul data-start=\"1942\" data-end=\"1999\">\n<li data-start=\"1942\" data-end=\"1954\">\n<p data-start=\"1944\" data-end=\"1954\">(A) Newton<\/p>\n<\/li>\n<li data-start=\"1958\" data-end=\"1969\">\n<p data-start=\"1960\" data-end=\"1969\">(B) Joule<\/p>\n<\/li>\n<li data-start=\"1973\" data-end=\"1985\">\n<p data-start=\"1975\" data-end=\"1985\">(C) Pascal<\/p>\n<\/li>\n<li data-start=\"1989\" data-end=\"1999\">\n<p data-start=\"1991\" data-end=\"1999\">(D) Watt<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"2001\" data-end=\"2122\">\n<p data-start=\"2004\" data-end=\"2064\"><strong data-start=\"2004\" data-end=\"2064\">Which part of the plant is responsible for reproduction?<\/strong><\/p>\n<ul data-start=\"2068\" data-end=\"2122\">\n<li data-start=\"2068\" data-end=\"2078\">\n<p data-start=\"2070\" data-end=\"2078\">(A) Root<\/p>\n<\/li>\n<li data-start=\"2082\" data-end=\"2092\">\n<p data-start=\"2084\" data-end=\"2092\">(B) Stem<\/p>\n<\/li>\n<li data-start=\"2096\" data-end=\"2106\">\n<p data-start=\"2098\" data-end=\"2106\">(C) Leaf<\/p>\n<\/li>\n<li data-start=\"2110\" data-end=\"2122\">\n<p data-start=\"2112\" data-end=\"2122\">(D) Flower<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"2124\" data-end=\"2233\">\n<p data-start=\"2127\" data-end=\"2169\"><strong data-start=\"2127\" data-end=\"2169\">Which of the following is a non-metal?<\/strong><\/p>\n<ul data-start=\"2173\" data-end=\"2233\">\n<li data-start=\"2173\" data-end=\"2183\">\n<p data-start=\"2175\" data-end=\"2183\">(A) Iron<\/p>\n<\/li>\n<li data-start=\"2187\" data-end=\"2199\">\n<p data-start=\"2189\" data-end=\"2199\">(B) Copper<\/p>\n<\/li>\n<li data-start=\"2203\" data-end=\"2215\">\n<p data-start=\"2205\" data-end=\"2215\">(C) Sulfur<\/p>\n<\/li>\n<li data-start=\"2219\" data-end=\"2233\">\n<p data-start=\"2221\" data-end=\"2233\">(D) Aluminum<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"2235\" data-end=\"2401\">\n<p data-start=\"2238\" data-end=\"2289\"><strong data-start=\"2238\" data-end=\"2289\">What is the function of the respiratory system?<\/strong><\/p>\n<ul data-start=\"2293\" data-end=\"2401\">\n<li data-start=\"2293\" data-end=\"2319\">\n<p data-start=\"2295\" data-end=\"2319\">(A) Circulation of blood<\/p>\n<\/li>\n<li data-start=\"2323\" data-end=\"2346\">\n<p data-start=\"2325\" data-end=\"2346\">(B) Digestion of food<\/p>\n<\/li>\n<li data-start=\"2350\" data-end=\"2373\">\n<p data-start=\"2352\" data-end=\"2373\">(C) Exchange of gases<\/p>\n<\/li>\n<li data-start=\"2377\" data-end=\"2401\">\n<p data-start=\"2379\" data-end=\"2401\">(D) Excretion of waste<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"2403\" data-end=\"2519\">\n<p data-start=\"2406\" data-end=\"2457\"><strong data-start=\"2406\" data-end=\"2457\">Which of these is a renewable source of energy?<\/strong><\/p>\n<ul data-start=\"2461\" data-end=\"2519\">\n<li data-start=\"2461\" data-end=\"2471\">\n<p data-start=\"2463\" data-end=\"2471\">(A) Coal<\/p>\n<\/li>\n<li data-start=\"2475\" data-end=\"2484\">\n<p data-start=\"2477\" data-end=\"2484\">(B) Oil<\/p>\n<\/li>\n<li data-start=\"2488\" data-end=\"2498\">\n<p data-start=\"2490\" data-end=\"2498\">(C) Wind<\/p>\n<\/li>\n<li data-start=\"2502\" data-end=\"2519\">\n<p data-start=\"2504\" data-end=\"2519\">(D) Natural gas<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"2521\" data-end=\"2679\">\n<p data-start=\"2524\" data-end=\"2576\"><strong data-start=\"2524\" data-end=\"2576\">Which of the following is a homogeneous mixture?<\/strong><\/p>\n<ul data-start=\"2580\" data-end=\"2679\">\n<li data-start=\"2580\" data-end=\"2600\">\n<p data-start=\"2582\" data-end=\"2600\">(A) Sand and water<\/p>\n<\/li>\n<li data-start=\"2604\" data-end=\"2623\">\n<p data-start=\"2606\" data-end=\"2623\">(B) Oil and water<\/p>\n<\/li>\n<li data-start=\"2627\" data-end=\"2646\">\n<p data-start=\"2629\" data-end=\"2646\">(C) Salt solution<\/p>\n<\/li>\n<li data-start=\"2650\" data-end=\"2679\">\n<p data-start=\"2652\" data-end=\"2679\">(D) Iron filings and sulfur<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"2681\" data-end=\"2814\">\n<p data-start=\"2684\" data-end=\"2753\"><strong data-start=\"2684\" data-end=\"2753\">Which organ in the human body is responsible for filtering blood?<\/strong><\/p>\n<ul data-start=\"2757\" data-end=\"2814\">\n<li data-start=\"2757\" data-end=\"2768\">\n<p data-start=\"2759\" data-end=\"2768\">(A) Heart<\/p>\n<\/li>\n<li data-start=\"2772\" data-end=\"2783\">\n<p data-start=\"2774\" data-end=\"2783\">(B) Liver<\/p>\n<\/li>\n<li data-start=\"2787\" data-end=\"2799\">\n<p data-start=\"2789\" data-end=\"2799\">(C) Kidney<\/p>\n<\/li>\n<li data-start=\"2803\" data-end=\"2814\">\n<p data-start=\"2805\" data-end=\"2814\">(D) Lungs<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"2816\" data-end=\"2986\">\n<p data-start=\"2819\" data-end=\"2897\"><strong data-start=\"2819\" data-end=\"2897\">What is the process by which plants lose water vapor through their leaves?<\/strong><\/p>\n<ul data-start=\"2901\" data-end=\"2986\">\n<li data-start=\"2901\" data-end=\"2921\">\n<p data-start=\"2903\" data-end=\"2921\">(A) Photosynthesis<\/p>\n<\/li>\n<li data-start=\"2925\" data-end=\"2942\">\n<p data-start=\"2927\" data-end=\"2942\">(B) Respiration<\/p>\n<\/li>\n<li data-start=\"2946\" data-end=\"2965\">\n<p data-start=\"2948\" data-end=\"2965\">(C) Transpiration<\/p>\n<\/li>\n<li data-start=\"2969\" data-end=\"2986\">\n<p data-start=\"2971\" data-end=\"2986\">(D) Germination<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"2988\" data-end=\"3117\">\n<p data-start=\"2992\" data-end=\"3049\"><strong data-start=\"2992\" data-end=\"3049\">Which of the following is a conductor of electricity?<\/strong><\/p>\n<ul data-start=\"3054\" data-end=\"3117\">\n<li data-start=\"3054\" data-end=\"3065\">\n<p data-start=\"3056\" data-end=\"3065\">(A) Glass<\/p>\n<\/li>\n<li data-start=\"3070\" data-end=\"3082\">\n<p data-start=\"3072\" data-end=\"3082\">(B) Rubber<\/p>\n<\/li>\n<li data-start=\"3087\" data-end=\"3099\">\n<p data-start=\"3089\" data-end=\"3099\">(C) Silver<\/p>\n<\/li>\n<li data-start=\"3104\" data-end=\"3117\">\n<p data-start=\"3106\" data-end=\"3117\">(D) Plastic<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3 data-start=\"283\" data-end=\"313\">Class 8 iOS Important Questions<\/h3>\n<ol data-start=\"3158\" data-end=\"4537\">\n<li data-start=\"3158\" data-end=\"3311\">\n<p data-start=\"3161\" data-end=\"3209\"><strong data-start=\"3161\" data-end=\"3209\">Which of the following is a chemical change?<\/strong><\/p>\n<ul data-start=\"3213\" data-end=\"3311\">\n<li data-start=\"3213\" data-end=\"3233\">\n<p data-start=\"3215\" data-end=\"3233\">(A) Melting of ice<\/p>\n<\/li>\n<li data-start=\"3237\" data-end=\"3259\">\n<p data-start=\"3239\" data-end=\"3259\">(B) Boiling of water<\/p>\n<\/li>\n<li data-start=\"3263\" data-end=\"3284\">\n<p data-start=\"3265\" data-end=\"3284\">(C) Rusting of iron<\/p>\n<\/li>\n<li data-start=\"3288\" data-end=\"3311\">\n<p data-start=\"3290\" data-end=\"3311\">(D) Breaking of glass<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"3313\" data-end=\"3454\">\n<p data-start=\"3316\" data-end=\"3360\"><strong data-start=\"3316\" data-end=\"3360\">What is the function of red blood cells?<\/strong><\/p>\n<ul data-start=\"3364\" data-end=\"3454\">\n<li data-start=\"3364\" data-end=\"3386\">\n<p data-start=\"3366\" data-end=\"3386\">(A) Fight infections<\/p>\n<\/li>\n<li data-start=\"3390\" data-end=\"3406\">\n<p data-start=\"3392\" data-end=\"3406\">(B) Clot blood<\/p>\n<\/li>\n<li data-start=\"3410\" data-end=\"3428\">\n<p data-start=\"3412\" data-end=\"3428\">(C) Carry oxygen<\/p>\n<\/li>\n<li data-start=\"3432\" data-end=\"3454\">\n<p data-start=\"3434\" data-end=\"3454\">(D) Produce hormones<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"3456\" data-end=\"3608\">\n<p data-start=\"3459\" data-end=\"3522\"><strong data-start=\"3459\" data-end=\"3522\">Which of the following is a non-renewable source of energy?<\/strong><\/p>\n<ul data-start=\"3526\" data-end=\"3608\">\n<li data-start=\"3526\" data-end=\"3544\">\n<p data-start=\"3528\" data-end=\"3544\">(A) Solar energy<\/p>\n<\/li>\n<li data-start=\"3548\" data-end=\"3565\">\n<p data-start=\"3550\" data-end=\"3565\">(B) Wind energy<\/p>\n<\/li>\n<li data-start=\"3569\" data-end=\"3579\">\n<p data-start=\"3571\" data-end=\"3579\">(C) Coal<\/p>\n<\/li>\n<li data-start=\"3583\" data-end=\"3608\">\n<p data-start=\"3585\" data-end=\"3608\">(D) Hydroelectric power<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"3610\" data-end=\"3715\">\n<p data-start=\"3613\" data-end=\"3647\"><strong data-start=\"3613\" data-end=\"3647\">Which of these is a noble gas?<\/strong><\/p>\n<ul data-start=\"3651\" data-end=\"3715\">\n<li data-start=\"3651\" data-end=\"3663\">\n<p data-start=\"3653\" data-end=\"3663\">(A) Oxygen<\/p>\n<\/li>\n<li data-start=\"3667\" data-end=\"3681\">\n<p data-start=\"3669\" data-end=\"3681\">(B) Nitrogen<\/p>\n<\/li>\n<li data-start=\"3685\" data-end=\"3697\">\n<p data-start=\"3687\" data-end=\"3697\">(C) Helium<\/p>\n<\/li>\n<li data-start=\"3701\" data-end=\"3715\">\n<p data-start=\"3703\" data-end=\"3715\">(D) Hydrogen<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"3717\" data-end=\"3813\">\n<p data-start=\"3720\" data-end=\"3762\"><strong data-start=\"3720\" data-end=\"3762\">What is the chemical formula of water?<\/strong><\/p>\n<ul data-start=\"3766\" data-end=\"3813\">\n<li data-start=\"3766\" data-end=\"3775\">\n<p data-start=\"3768\" data-end=\"3775\">(A) CO\u2082<\/p>\n<\/li>\n<li data-start=\"3779\" data-end=\"3788\">\n<p data-start=\"3781\" data-end=\"3788\">(B) H\u2082O<\/p>\n<\/li>\n<li data-start=\"3792\" data-end=\"3800\">\n<p data-start=\"3794\" data-end=\"3800\">(C) O\u2082<\/p>\n<\/li>\n<li data-start=\"3804\" data-end=\"3813\">\n<p data-start=\"3806\" data-end=\"3813\">(D) HCl<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"3815\" data-end=\"3947\">\n<p data-start=\"3818\" data-end=\"3871\"><strong data-start=\"3818\" data-end=\"3871\">Which part of the cell contains genetic material?<\/strong><\/p>\n<ul data-start=\"3875\" data-end=\"3947\">\n<li data-start=\"3875\" data-end=\"3890\">\n<p data-start=\"3877\" data-end=\"3890\">(A) Cytoplasm<\/p>\n<\/li>\n<li data-start=\"3894\" data-end=\"3907\">\n<p data-start=\"3896\" data-end=\"3907\">(B) Nucleus<\/p>\n<\/li>\n<li data-start=\"3911\" data-end=\"3929\">\n<p data-start=\"3913\" data-end=\"3929\">(C) Mitochondria<\/p>\n<\/li>\n<li data-start=\"3933\" data-end=\"3947\">\n<p data-start=\"3935\" data-end=\"3947\">(D) Ribosome<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"3949\" data-end=\"4075\">\n<p data-start=\"3952\" data-end=\"3999\"><strong data-start=\"3952\" data-end=\"3999\">Which of the following is a greenhouse gas?<\/strong><\/p>\n<ul data-start=\"4003\" data-end=\"4075\">\n<li data-start=\"4003\" data-end=\"4015\">\n<p data-start=\"4005\" data-end=\"4015\">(A) Oxygen<\/p>\n<\/li>\n<li data-start=\"4019\" data-end=\"4033\">\n<p data-start=\"4021\" data-end=\"4033\">(B) Nitrogen<\/p>\n<\/li>\n<li data-start=\"4037\" data-end=\"4057\">\n<p data-start=\"4039\" data-end=\"4057\">(C) Carbon dioxide<\/p>\n<\/li>\n<li data-start=\"4061\" data-end=\"4075\">\n<p data-start=\"4063\" data-end=\"4075\">(D) Hydrogen<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"4077\" data-end=\"4239\">\n<p data-start=\"4080\" data-end=\"4152\"><strong data-start=\"4080\" data-end=\"4152\">What is the process of conversion of water vapor into liquid called?<\/strong><\/p>\n<ul data-start=\"4156\" data-end=\"4239\">\n<li data-start=\"4156\" data-end=\"4173\">\n<p data-start=\"4158\" data-end=\"4173\">(A) Evaporation<\/p>\n<\/li>\n<li data-start=\"4177\" data-end=\"4195\">\n<p data-start=\"4179\" data-end=\"4195\">(B) Condensation<\/p>\n<\/li>\n<li data-start=\"4199\" data-end=\"4216\">\n<p data-start=\"4201\" data-end=\"4216\">(C) Sublimation<\/p>\n<\/li>\n<li data-start=\"4220\" data-end=\"4239\">\n<p data-start=\"4222\" data-end=\"4239\">(D) Precipitation<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"4241\" data-end=\"4380\">\n<p data-start=\"4244\" data-end=\"4311\"><strong data-start=\"4244\" data-end=\"4311\">Which of the following is an example of a unicellular organism?<\/strong><\/p>\n<ul data-start=\"4315\" data-end=\"4380\">\n<li data-start=\"4315\" data-end=\"4327\">\n<p data-start=\"4317\" data-end=\"4327\">(A) Amoeba<\/p>\n<\/li>\n<li data-start=\"4331\" data-end=\"4342\">\n<p data-start=\"4333\" data-end=\"4342\">(B) Hydra<\/p>\n<\/li>\n<li data-start=\"4346\" data-end=\"4361\">\n<p data-start=\"4348\" data-end=\"4361\">(C) Earthworm<\/p>\n<\/li>\n<li data-start=\"4365\" data-end=\"4380\">\n<p data-start=\"4367\" data-end=\"4380\">(D) Butterfly<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"4382\" data-end=\"4537\">\n<p data-start=\"4386\" data-end=\"4453\"><strong data-start=\"4386\" data-end=\"4453\">Which of the following is used to measure atmospheric pressure?<\/strong><\/p>\n<ul data-start=\"4458\" data-end=\"4537\">\n<li data-start=\"4458\" data-end=\"4475\">\n<p data-start=\"4460\" data-end=\"4475\">(A) Thermometer<\/p>\n<\/li>\n<li data-start=\"4480\" data-end=\"4495\">\n<p data-start=\"4482\" data-end=\"4495\">(B) Barometer<\/p>\n<\/li>\n<li data-start=\"4500\" data-end=\"4516\">\n<p data-start=\"4502\" data-end=\"4516\">(C) Hygrometer<\/p>\n<\/li>\n<li data-start=\"4521\" data-end=\"4537\">\n<p data-start=\"4523\" data-end=\"4537\">(D) Anemometer<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3 data-start=\"283\" data-end=\"313\">Class 9 iOS Important Questions<\/h3>\n<ol data-start=\"4582\" data-end=\"5913\">\n<li data-start=\"4582\" data-end=\"4703\">\n<p data-start=\"4585\" data-end=\"4633\"><strong data-start=\"4585\" data-end=\"4633\">Which of the following is a scalar quantity?<\/strong><\/p>\n<ul data-start=\"4637\" data-end=\"4703\">\n<li data-start=\"4637\" data-end=\"4651\">\n<p data-start=\"4639\" data-end=\"4651\">(A) Velocity<\/p>\n<\/li>\n<li data-start=\"4655\" data-end=\"4666\">\n<p data-start=\"4657\" data-end=\"4666\">(B) Force<\/p>\n<\/li>\n<li data-start=\"4670\" data-end=\"4681\">\n<p data-start=\"4672\" data-end=\"4681\">(C) Speed<\/p>\n<\/li>\n<li data-start=\"4685\" data-end=\"4703\">\n<p data-start=\"4687\" data-end=\"4703\">(D) Acceleration<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"4705\" data-end=\"4836\">\n<p data-start=\"4708\" data-end=\"4761\"><strong data-start=\"4708\" data-end=\"4761\">What is the acceleration due to gravity on Earth?<\/strong><\/p>\n<ul data-start=\"4765\" data-end=\"4836\">\n<li data-start=\"4765\" data-end=\"4779\">\n<p data-start=\"4767\" data-end=\"4779\">(A) 9.8 m\/s\u00b2<\/p>\n<\/li>\n<li data-start=\"4783\" data-end=\"4798\">\n<p data-start=\"4785\" data-end=\"4798\">(B) 9.8 km\/s\u00b2<\/p>\n<\/li>\n<li data-start=\"4802\" data-end=\"4817\">\n<p data-start=\"4804\" data-end=\"4817\">(C) 9.8 cm\/s\u00b2<\/p>\n<\/li>\n<li data-start=\"4821\" data-end=\"4836\">\n<p data-start=\"4823\" data-end=\"4836\">(D) 9.8 mm\/s\u00b2<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"4838\" data-end=\"5001\">\n<p data-start=\"4841\" data-end=\"4891\"><strong data-start=\"4841\" data-end=\"4891\">Which of the following is a chemical reaction?<\/strong><\/p>\n<ul data-start=\"4895\" data-end=\"5001\">\n<li data-start=\"4895\" data-end=\"4915\">\n<p data-start=\"4897\" data-end=\"4915\">(A) Melting of ice<\/p>\n<\/li>\n<li data-start=\"4919\" data-end=\"4941\">\n<p data-start=\"4921\" data-end=\"4941\">(B) Boiling of water<\/p>\n<\/li>\n<li data-start=\"4945\" data-end=\"4966\">\n<p data-start=\"4947\" data-end=\"4966\">(C) Burning of coal<\/p>\n<\/li>\n<li data-start=\"4970\" data-end=\"5001\">\n<p data-start=\"4972\" data-end=\"5001\">(D) Dissolving sugar in water<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"5003\" data-end=\"5099\">\n<p data-start=\"5006\" data-end=\"5053\"><strong data-start=\"5006\" data-end=\"5053\">What is the pH value of a neutral solution?<\/strong><\/p>\n<ul data-start=\"5057\" data-end=\"5099\">\n<li data-start=\"5057\" data-end=\"5064\">\n<p data-start=\"5059\" data-end=\"5064\">(A) 0<\/p>\n<\/li>\n<li data-start=\"5068\" data-end=\"5075\">\n<p data-start=\"5070\" data-end=\"5075\">(B) 7<\/p>\n<\/li>\n<li data-start=\"5079\" data-end=\"5087\">\n<p data-start=\"5081\" data-end=\"5087\">(C) 14<\/p>\n<\/li>\n<li data-start=\"5091\" data-end=\"5099\">\n<p data-start=\"5093\" data-end=\"5099\">(D) 10<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"5101\" data-end=\"5207\">\n<p data-start=\"5104\" data-end=\"5154\"><strong data-start=\"5104\" data-end=\"5154\">Which of the following is a covalent compound?<\/strong><\/p>\n<ul data-start=\"5158\" data-end=\"5207\">\n<li data-start=\"5158\" data-end=\"5168\">\n<p data-start=\"5160\" data-end=\"5168\">(A) NaCl<\/p>\n<\/li>\n<li data-start=\"5172\" data-end=\"5181\">\n<p data-start=\"5174\" data-end=\"5181\">(B) KBr<\/p>\n<\/li>\n<li data-start=\"5185\" data-end=\"5194\">\n<p data-start=\"5187\" data-end=\"5194\">(C) H\u2082O<\/p>\n<\/li>\n<li data-start=\"5198\" data-end=\"5207\">\n<p data-start=\"5200\" data-end=\"5207\">(D) MgO<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"5209\" data-end=\"5310\">\n<p data-start=\"5212\" data-end=\"5253\"><strong data-start=\"5212\" data-end=\"5253\">What is the unit of electric current?<\/strong><\/p>\n<ul data-start=\"5257\" data-end=\"5310\">\n<li data-start=\"5257\" data-end=\"5267\">\n<p data-start=\"5259\" data-end=\"5267\">(A) Volt<\/p>\n<\/li>\n<li data-start=\"5271\" data-end=\"5280\">\n<p data-start=\"5273\" data-end=\"5280\">(B) Ohm<\/p>\n<\/li>\n<li data-start=\"5284\" data-end=\"5296\">\n<p data-start=\"5286\" data-end=\"5296\">(C) Ampere<\/p>\n<\/li>\n<li data-start=\"5300\" data-end=\"5310\">\n<p data-start=\"5302\" data-end=\"5310\">(D) Watt<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"5312\" data-end=\"5449\">\n<p data-start=\"5315\" data-end=\"5374\"><strong data-start=\"5315\" data-end=\"5374\">Which of the following is a renewable source of energy?<\/strong><\/p>\n<ul data-start=\"5378\" data-end=\"5449\">\n<li data-start=\"5378\" data-end=\"5393\">\n<p data-start=\"5380\" data-end=\"5393\">(A) Petroleum<\/p>\n<\/li>\n<li data-start=\"5397\" data-end=\"5414\">\n<p data-start=\"5399\" data-end=\"5414\">(B) Natural gas<\/p>\n<\/li>\n<li data-start=\"5418\" data-end=\"5435\">\n<p data-start=\"5420\" data-end=\"5435\">(C) Wind energy<\/p>\n<\/li>\n<li data-start=\"5439\" data-end=\"5449\">\n<p data-start=\"5441\" data-end=\"5449\">(D) Coal<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"5451\" data-end=\"5618\">\n<p data-start=\"5454\" data-end=\"5516\"><strong data-start=\"5454\" data-end=\"5516\">Which of the following is an example of a chemical change?<\/strong><\/p>\n<ul data-start=\"5520\" data-end=\"5618\">\n<li data-start=\"5520\" data-end=\"5543\">\n<p data-start=\"5522\" data-end=\"5543\">(A) Freezing of water<\/p>\n<\/li>\n<li data-start=\"5547\" data-end=\"5569\">\n<p data-start=\"5549\" data-end=\"5569\">(B) Boiling of water<\/p>\n<\/li>\n<li data-start=\"5573\" data-end=\"5594\">\n<p data-start=\"5575\" data-end=\"5594\">(C) Rusting of iron<\/p>\n<\/li>\n<li data-start=\"5598\" data-end=\"5618\">\n<p data-start=\"5600\" data-end=\"5618\">(D) Melting of ice<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"5620\" data-end=\"5797\">\n<p data-start=\"5623\" data-end=\"5685\"><strong data-start=\"5623\" data-end=\"5685\">What is the main function of the human respiratory system?<\/strong><\/p>\n<ul data-start=\"5689\" data-end=\"5797\">\n<li data-start=\"5689\" data-end=\"5715\">\n<p data-start=\"5691\" data-end=\"5715\">(A) Circulation of blood<\/p>\n<\/li>\n<li data-start=\"5719\" data-end=\"5742\">\n<p data-start=\"5721\" data-end=\"5742\">(B) Digestion of food<\/p>\n<\/li>\n<li data-start=\"5746\" data-end=\"5769\">\n<p data-start=\"5748\" data-end=\"5769\">(C) Exchange of gases<\/p>\n<\/li>\n<li data-start=\"5773\" data-end=\"5797\">\n<p data-start=\"5775\" data-end=\"5797\">(D) Excretion of waste<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"5799\" data-end=\"5913\">\n<p data-start=\"5803\" data-end=\"5845\"><strong data-start=\"5803\" data-end=\"5845\">Which of the following is a non-metal?<\/strong><\/p>\n<ul data-start=\"5850\" data-end=\"5913\">\n<li data-start=\"5850\" data-end=\"5862\">\n<p data-start=\"5852\" data-end=\"5862\">(A) Sodium<\/p>\n<\/li>\n<li data-start=\"5867\" data-end=\"5877\">\n<p data-start=\"5869\" data-end=\"5877\">(B) Iron<\/p>\n<\/li>\n<li data-start=\"5882\" data-end=\"5896\">\n<p data-start=\"5884\" data-end=\"5896\">(C) Chlorine<\/p>\n<\/li>\n<li data-start=\"5901\" data-end=\"5913\">\n<p data-start=\"5903\" data-end=\"5913\">(D) Copper<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3 data-start=\"283\" data-end=\"313\">Class 10 iOS Important Questions<\/h3>\n<ol data-start=\"5958\" data-end=\"6677\">\n<li data-start=\"5958\" data-end=\"6073\">\n<p data-start=\"5961\" data-end=\"6015\"><strong data-start=\"5961\" data-end=\"6015\">What is the chemical formula of calcium carbonate?<\/strong><\/p>\n<ul data-start=\"6019\" data-end=\"6073\">\n<li data-start=\"6019\" data-end=\"6030\">\n<p data-start=\"6021\" data-end=\"6030\">(A) CaCO\u2083<\/p>\n<\/li>\n<li data-start=\"6034\" data-end=\"6045\">\n<p data-start=\"6036\" data-end=\"6045\">(B) CaCl\u2082<\/p>\n<\/li>\n<li data-start=\"6049\" data-end=\"6060\">\n<p data-start=\"6051\" data-end=\"6060\">(C) CaSO\u2084<\/p>\n<\/li>\n<li data-start=\"6064\" data-end=\"6073\">\n<p data-start=\"6066\" data-end=\"6073\">(D) CaO<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"6075\" data-end=\"6180\">\n<p data-start=\"6078\" data-end=\"6122\"><strong data-start=\"6078\" data-end=\"6122\">Which of the following is a strong acid?<\/strong><\/p>\n<ul data-start=\"6126\" data-end=\"6180\">\n<li data-start=\"6126\" data-end=\"6135\">\n<p data-start=\"6128\" data-end=\"6135\">(A) HCl<\/p>\n<\/li>\n<li data-start=\"6139\" data-end=\"6152\">\n<p data-start=\"6141\" data-end=\"6152\">(B) CH\u2083COOH<\/p>\n<\/li>\n<li data-start=\"6156\" data-end=\"6167\">\n<p data-start=\"6158\" data-end=\"6167\">(C) H\u2082CO\u2083<\/p>\n<\/li>\n<li data-start=\"6171\" data-end=\"6180\">\n<p data-start=\"6173\" data-end=\"6180\">(D) H\u2082O<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"6182\" data-end=\"6281\">\n<p data-start=\"6185\" data-end=\"6224\"><strong data-start=\"6185\" data-end=\"6224\">What is the unit of electric power?<\/strong><\/p>\n<ul data-start=\"6228\" data-end=\"6281\">\n<li data-start=\"6228\" data-end=\"6238\">\n<p data-start=\"6230\" data-end=\"6238\">(A) Volt<\/p>\n<\/li>\n<li data-start=\"6242\" data-end=\"6254\">\n<p data-start=\"6244\" data-end=\"6254\">(B) Ampere<\/p>\n<\/li>\n<li data-start=\"6258\" data-end=\"6268\">\n<p data-start=\"6260\" data-end=\"6268\">(C) Watt<\/p>\n<\/li>\n<li data-start=\"6272\" data-end=\"6281\">\n<p data-start=\"6274\" data-end=\"6281\">(D) Ohm<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"6283\" data-end=\"6409\">\n<p data-start=\"6286\" data-end=\"6333\"><strong data-start=\"6286\" data-end=\"6333\">Which of the following is a greenhouse gas?<\/strong><\/p>\n<ul data-start=\"6337\" data-end=\"6409\">\n<li data-start=\"6337\" data-end=\"6349\">\n<p data-start=\"6339\" data-end=\"6349\">(A) Oxygen<\/p>\n<\/li>\n<li data-start=\"6353\" data-end=\"6367\">\n<p data-start=\"6355\" data-end=\"6367\">(B) Nitrogen<\/p>\n<\/li>\n<li data-start=\"6371\" data-end=\"6391\">\n<p data-start=\"6373\" data-end=\"6391\">(C) Carbon dioxide<\/p>\n<\/li>\n<li data-start=\"6395\" data-end=\"6409\">\n<p data-start=\"6397\" data-end=\"6409\">(D) Hydrogen<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"6411\" data-end=\"6569\">\n<p data-start=\"6414\" data-end=\"6488\"><strong data-start=\"6414\" data-end=\"6488\">What is the process of conversion of a solid directly into gas called?<\/strong><\/p>\n<ul data-start=\"6492\" data-end=\"6569\">\n<li data-start=\"6492\" data-end=\"6509\">\n<p data-start=\"6494\" data-end=\"6509\">(A) Evaporation<\/p>\n<\/li>\n<li data-start=\"6513\" data-end=\"6531\">\n<p data-start=\"6515\" data-end=\"6531\">(B) Condensation<\/p>\n<\/li>\n<li data-start=\"6535\" data-end=\"6552\">\n<p data-start=\"6537\" data-end=\"6552\">(C) Sublimation<\/p>\n<\/li>\n<li data-start=\"6556\" data-end=\"6569\">\n<p data-start=\"6558\" data-end=\"6569\">(D) Melting<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"6571\" data-end=\"6677\">\n<p data-start=\"6574\" data-end=\"6624\"><strong data-start=\"6574\" data-end=\"6624\">Which of the following is a covalent compound?<\/strong><\/p>\n<ul data-start=\"6628\" data-end=\"6677\">\n<li data-start=\"6628\" data-end=\"6638\">\n<p data-start=\"6630\" data-end=\"6638\">(A) NaCl<\/p>\n<\/li>\n<li data-start=\"6642\" data-end=\"6651\">\n<p data-start=\"6644\" data-end=\"6651\">(B) KBr<\/p>\n<\/li>\n<li data-start=\"6655\" data-end=\"6664\">\n<p data-start=\"6657\" data-end=\"6664\">(C) H\u2082O<\/p>\n<\/li>\n<li data-start=\"6668\" data-end=\"6677\">\n<p data-start=\"6670\" data-end=\"6677\">(D) MgO<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3 data-start=\"283\" data-end=\"313\">Class 11 iOS Important Questions<\/h3>\n<ol data-start=\"402\" data-end=\"1128\">\n<li data-start=\"402\" data-end=\"521\">\n<p data-start=\"405\" data-end=\"521\"><strong data-start=\"405\" data-end=\"453\">Which of the following is a vector quantity?<\/strong><br data-start=\"453\" data-end=\"456\" \/>(A) Work<br data-start=\"467\" data-end=\"470\" \/>(B) Power<br data-start=\"482\" data-end=\"485\" \/>(C) Displacement<br data-start=\"504\" data-end=\"507\" \/>(D) Speed<\/p>\n<\/li>\n<li data-start=\"523\" data-end=\"645\">\n<p data-start=\"526\" data-end=\"645\"><strong data-start=\"526\" data-end=\"571\">What is the dimensional formula of force?<\/strong><br data-start=\"571\" data-end=\"574\" \/>(A) [MLT\u207b\u00b2]<br data-start=\"588\" data-end=\"591\" \/>(B) [ML\u00b2T\u207b\u00b9]<br data-start=\"606\" data-end=\"609\" \/>(C) [ML\u207b\u00b9T\u207b\u00b2]<br data-start=\"625\" data-end=\"628\" \/>(D) [M\u00b2LT\u207b\u00b2]<\/p>\n<\/li>\n<li data-start=\"647\" data-end=\"793\">\n<p data-start=\"650\" data-end=\"793\"><strong data-start=\"650\" data-end=\"717\">The escape velocity from the surface of Earth is approximately:<\/strong><br data-start=\"717\" data-end=\"720\" \/>(A) 9.8 km\/s<br data-start=\"735\" data-end=\"738\" \/>(B) 7.9 km\/s<br data-start=\"753\" data-end=\"756\" \/>(C) 11.2 km\/s<br data-start=\"772\" data-end=\"775\" \/>(D) 15.6 km\/s<\/p>\n<\/li>\n<li data-start=\"795\" data-end=\"977\">\n<p data-start=\"798\" data-end=\"977\"><strong data-start=\"798\" data-end=\"876\">What is the acceleration of an object moving in a uniform circular motion?<\/strong><br data-start=\"876\" data-end=\"879\" \/>(A) Zero<br data-start=\"890\" data-end=\"893\" \/>(B) Constant<br data-start=\"908\" data-end=\"911\" \/>(C) Directed towards the center<br data-start=\"945\" data-end=\"948\" \/>(D) Away from the center<\/p>\n<\/li>\n<li data-start=\"979\" data-end=\"1128\">\n<p data-start=\"982\" data-end=\"1128\"><strong data-start=\"982\" data-end=\"1062\">If a spring is stretched to double its length, the potential energy becomes:<\/strong><br data-start=\"1062\" data-end=\"1065\" \/>(A) Half<br data-start=\"1076\" data-end=\"1079\" \/>(B) Double<br data-start=\"1092\" data-end=\"1095\" \/>(C) Four times<br data-start=\"1112\" data-end=\"1115\" \/>(D) Same<\/p>\n<\/li>\n<li data-start=\"1149\" data-end=\"1263\">\n<p data-start=\"1152\" data-end=\"1263\"><strong data-start=\"1152\" data-end=\"1186\">The shape of the p-orbital is:<\/strong><br data-start=\"1186\" data-end=\"1189\" \/>(A) Spherical<br data-start=\"1205\" data-end=\"1208\" \/>(B) Dumbbell<br data-start=\"1223\" data-end=\"1226\" \/>(C) Circular<br data-start=\"1241\" data-end=\"1244\" \/>(D) Elliptical<\/p>\n<\/li>\n<li data-start=\"1265\" data-end=\"1365\">\n<p data-start=\"1268\" data-end=\"1365\"><strong data-start=\"1268\" data-end=\"1311\">Which of the following is a Lewis acid?<\/strong><br data-start=\"1311\" data-end=\"1314\" \/>(A) NH\u2083<br data-start=\"1324\" data-end=\"1327\" \/>(B) H\u2082O<br data-start=\"1337\" data-end=\"1340\" \/>(C) BF\u2083<br data-start=\"1350\" data-end=\"1353\" \/>(D) OH\u207b<\/p>\n<\/li>\n<li data-start=\"1367\" data-end=\"1577\">\n<p data-start=\"1370\" data-end=\"1577\"><strong data-start=\"1370\" data-end=\"1486\">Which law states that the total pressure exerted by a mixture of gases is equal to the sum of partial pressures?<\/strong><br data-start=\"1486\" data-end=\"1489\" \/>(A) Boyle\u2019s Law<br data-start=\"1507\" data-end=\"1510\" \/>(B) Charles\u2019 Law<br data-start=\"1529\" data-end=\"1532\" \/>(C) Dalton\u2019s Law<br data-start=\"1551\" data-end=\"1554\" \/>(D) Avogadro\u2019s Law<\/p>\n<\/li>\n<li data-start=\"1596\" data-end=\"1738\">\n<p data-start=\"1599\" data-end=\"1738\"><strong data-start=\"1599\" data-end=\"1658\">Which plant hormone is responsible for cell elongation?<\/strong><br data-start=\"1658\" data-end=\"1661\" \/>(A) Cytokinin<br data-start=\"1677\" data-end=\"1680\" \/>(B) Gibberellin<br data-start=\"1698\" data-end=\"1701\" \/>(C) Auxin<br data-start=\"1713\" data-end=\"1716\" \/>(D) Abscisic acid<\/p>\n<\/li>\n<li data-start=\"1740\" data-end=\"1885\">\n<p data-start=\"1744\" data-end=\"1885\"><strong data-start=\"1744\" data-end=\"1813\">Which phase of the cell cycle is responsible for DNA replication?<\/strong><br data-start=\"1813\" data-end=\"1816\" \/>(A) G1 Phase<br data-start=\"1831\" data-end=\"1834\" \/>(B) S Phase<br data-start=\"1848\" data-end=\"1851\" \/>(C) G2 Phase<br data-start=\"1866\" data-end=\"1869\" \/>(D) M Phase<\/p>\n<\/li>\n<\/ol>\n<h3 data-start=\"283\" data-end=\"313\">Class 12 iOS Important Questions<\/h3>\n<ol data-start=\"1981\" data-end=\"2822\">\n<li data-start=\"1981\" data-end=\"2227\">\n<p data-start=\"1984\" data-end=\"2227\"><strong data-start=\"1984\" data-end=\"2046\">Which of the following is true about electric field lines?<\/strong><br data-start=\"2046\" data-end=\"2049\" \/>(A) They form closed loops<br data-start=\"2078\" data-end=\"2081\" \/>(B) They intersect each other<br data-start=\"2113\" data-end=\"2116\" \/>(C) They originate from negative charges<br data-start=\"2159\" data-end=\"2162\" \/>(D) They originate from positive and end at negative charges<\/p>\n<\/li>\n<li data-start=\"2229\" data-end=\"2373\">\n<p data-start=\"2232\" data-end=\"2373\"><strong data-start=\"2232\" data-end=\"2276\">A transformer works on the principle of:<\/strong><br data-start=\"2276\" data-end=\"2279\" \/>(A) Ohm\u2019s law<br data-start=\"2295\" data-end=\"2298\" \/>(B) Electromagnetic induction<br data-start=\"2330\" data-end=\"2333\" \/>(C) Capacitance<br data-start=\"2351\" data-end=\"2354\" \/>(D) Resistance<\/p>\n<\/li>\n<li data-start=\"2375\" data-end=\"2571\">\n<p data-start=\"2378\" data-end=\"2571\"><strong data-start=\"2378\" data-end=\"2450\">In photoelectric effect, the energy of emitted electrons depends on:<\/strong><br data-start=\"2450\" data-end=\"2453\" \/>(A) Intensity of light<br data-start=\"2478\" data-end=\"2481\" \/>(B) Frequency of light<br data-start=\"2506\" data-end=\"2509\" \/>(C) Duration of exposure<br data-start=\"2536\" data-end=\"2539\" \/>(D) Area of the metal plate<\/p>\n<\/li>\n<li data-start=\"2573\" data-end=\"2671\">\n<p data-start=\"2576\" data-end=\"2671\"><strong data-start=\"2576\" data-end=\"2609\">The unit of magnetic flux is:<\/strong><br data-start=\"2609\" data-end=\"2612\" \/>(A) Tesla<br data-start=\"2624\" data-end=\"2627\" \/>(B) Weber<br data-start=\"2639\" data-end=\"2642\" \/>(C) Henry<br data-start=\"2654\" data-end=\"2657\" \/>(D) Farad<\/p>\n<\/li>\n<li data-start=\"2673\" data-end=\"2822\">\n<p data-start=\"2676\" data-end=\"2822\"><strong data-start=\"2676\" data-end=\"2761\">What is the focal length of a concave mirror if the radius of curvature is 20 cm?<\/strong><br data-start=\"2761\" data-end=\"2764\" \/>(A) 10 cm<br data-start=\"2776\" data-end=\"2779\" \/>(B) 20 cm<br data-start=\"2791\" data-end=\"2794\" \/>(C) 40 cm<br data-start=\"2806\" data-end=\"2809\" \/>(D) 5 cm<\/p>\n<\/li>\n<li data-start=\"2843\" data-end=\"2986\">\n<p data-start=\"2846\" data-end=\"2986\"><strong data-start=\"2846\" data-end=\"2926\">Which of the following is used as a primary standard in acid-base titration?<\/strong><br data-start=\"2926\" data-end=\"2929\" \/>(A) NaOH<br data-start=\"2940\" data-end=\"2943\" \/>(B) HCl<br data-start=\"2953\" data-end=\"2956\" \/>(C) Na\u2082CO\u2083<br data-start=\"2969\" data-end=\"2972\" \/>(D) NH\u2084OH<\/p>\n<\/li>\n<li data-start=\"2988\" data-end=\"3088\">\n<p data-start=\"2991\" data-end=\"3088\"><strong data-start=\"2991\" data-end=\"3029\">Which compound exhibits resonance?<\/strong><br data-start=\"3029\" data-end=\"3032\" \/>(A) C\u2082H\u2086<br data-start=\"3043\" data-end=\"3046\" \/>(B) CH\u2084<br data-start=\"3056\" data-end=\"3059\" \/>(C) C\u2086H\u2086<br data-start=\"3070\" data-end=\"3073\" \/>(D) C\u2082H\u2085OH<\/p>\n<\/li>\n<li data-start=\"3090\" data-end=\"3205\">\n<p data-start=\"3093\" data-end=\"3205\"><strong data-start=\"3093\" data-end=\"3153\">Which of the following is the strongest oxidising agent?<\/strong><br data-start=\"3153\" data-end=\"3156\" \/>(A) Cl\u2082<br data-start=\"3166\" data-end=\"3169\" \/>(B) F\u2082<br data-start=\"3178\" data-end=\"3181\" \/>(C) Br\u2082<br data-start=\"3191\" data-end=\"3194\" \/>(D) I\u2082<\/p>\n<\/li>\n<li data-start=\"3224\" data-end=\"3404\">\n<p data-start=\"3227\" data-end=\"3404\"><strong data-start=\"3227\" data-end=\"3292\">Which part of the nephron is responsible for ultrafiltration?<\/strong><br data-start=\"3292\" data-end=\"3295\" \/>(A) Loop of Henle<br data-start=\"3315\" data-end=\"3318\" \/>(B) Bowman\u2019s capsule<br data-start=\"3341\" data-end=\"3344\" \/>(C) Collecting duct<br data-start=\"3366\" data-end=\"3369\" \/>(D) Proximal convoluted tubule<\/p>\n<\/li>\n<li data-start=\"3406\" data-end=\"3590\">\n<p data-start=\"3410\" data-end=\"3590\"><strong data-start=\"3410\" data-end=\"3492\">Which of the following diseases is caused due to autosomal recessive disorder?<\/strong><br data-start=\"3492\" data-end=\"3495\" \/>(A) Hemophilia<br data-start=\"3512\" data-end=\"3515\" \/>(B) Down syndrome<br data-start=\"3535\" data-end=\"3538\" \/>(C) Sickle cell anemia<br data-start=\"3563\" data-end=\"3566\" \/>(D) Color blindness<\/p>\n<\/li>\n<\/ol>\n<h2><strong>Tips for Using iOS Important Questions Effectively<\/strong><\/h2>\n<ul data-spread=\"false\">\n<li><strong>Solve with a Timer:<\/strong> This simulates the exam environment.<\/li>\n<li><strong>Understand the Concept:<\/strong> Don&#8217;t just memorize, understand the reasoning.<\/li>\n<li><strong>Revise Regularly:<\/strong> Go over these questions weekly for better retention.<\/li>\n<li><strong>Use NCERT Books:<\/strong> Most questions are based on NCERT fundamentals.<\/li>\n<li><strong>Take Mock Tests:<\/strong> Include these questions in mock test practice.<\/li>\n<\/ul>\n<h2><strong>Where to Find More iOS Practice Questions?<\/strong><\/h2>\n<p>You can find additional practice material and sample questions on:<\/p>\n<ul data-spread=\"false\">\n<li>The official SilverZone Olympiad website<\/li>\n<li>Aakash Institute practice modules<\/li>\n<li>NCERT textbooks and guides<\/li>\n<li>Olympiad-specific books and guides available online or in stores<\/li>\n<\/ul>\n<h2><strong>Conclusion<\/strong><\/h2>\n<p>The iOS 2025-26 Exam demands a deep understanding of scientific principles and a structured approach to preparation. By focusing on class-wise important questions, students can maximize their performance and approach the exam with greater confidence.<\/p>\n<p>Use this guide to plan your revision effectively and don\u2019t forget to complement these questions with full-length practice tests and solution-based learning. Let this article serve as your go-to resource for revising the most relevant and likely questions for iOS 2025-26.<\/p>\n<h2><strong>iOS Important Questions for 2025-26 Exam FAQs<\/strong><\/h2>\n<p data-start=\"162\" data-end=\"234\"><strong data-start=\"167\" data-end=\"232\">Q1. What type of questions are asked in the iOS 2025\u201326 Exam?<\/strong><\/p>\n<p data-start=\"235\" data-end=\"566\"><strong data-start=\"235\" data-end=\"243\">Ans: <\/strong>The iOS exam primarily includes <strong data-start=\"278\" data-end=\"314\">Multiple Choice Questions (MCQs)<\/strong> that test both conceptual understanding and application skills in <strong data-start=\"381\" data-end=\"422\">Science (Physics, Chemistry, Biology)<\/strong> based on the student&#8217;s current academic level (Class 1 to 12). The questions are designed to align with NCERT\/CBSE\/ICSE and other state boards.<\/p>\n<p data-start=\"573\" data-end=\"647\"><strong data-start=\"578\" data-end=\"645\">Q2. Are iOS important questions the same as textbook questions?<\/strong><\/p>\n<p data-start=\"648\" data-end=\"923\"><strong data-start=\"648\" data-end=\"656\">Ans: <\/strong>Not exactly. While textbook concepts are essential, <strong data-start=\"711\" data-end=\"758\">iOS important questions go beyond textbooks<\/strong> by testing critical thinking, real-world applications, and Olympiad-level logic. They are curated specifically to help students prepare for competitive assessments.<\/p>\n<p data-start=\"930\" data-end=\"1010\"><strong data-start=\"935\" data-end=\"1008\">Q3. Where can I find class-wise iOS important questions for practice?<\/strong><\/p>\n<p data-start=\"1011\" data-end=\"1078\"><strong data-start=\"1011\" data-end=\"1019\">Ans: <\/strong>You can find class-wise iOS important questions through:<\/p>\n<ul data-start=\"1079\" data-end=\"1268\">\n<li data-start=\"1079\" data-end=\"1111\">\n<p data-start=\"1081\" data-end=\"1111\">Official iOS preparatory books<\/p>\n<\/li>\n<li data-start=\"1112\" data-end=\"1143\">\n<p data-start=\"1114\" data-end=\"1143\">Aakash iOS Olympiad resources<\/p>\n<\/li>\n<li data-start=\"1144\" data-end=\"1177\">\n<p data-start=\"1146\" data-end=\"1177\">School Olympiad practice sheets<\/p>\n<\/li>\n<li data-start=\"1178\" data-end=\"1268\">\n<p data-start=\"1180\" data-end=\"1268\">Online platforms providing <strong data-start=\"1207\" data-end=\"1252\">sample papers and previous year questions<\/strong> tailored to IOS<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1275\" data-end=\"1343\"><strong data-start=\"1280\" data-end=\"1341\">Q4. Are iOS important questions available with solutions?<\/strong><\/p>\n<p data-start=\"1344\" data-end=\"1602\"><strong data-start=\"1344\" data-end=\"1352\">Ans: <\/strong>Yes, many sources provide <strong data-start=\"1381\" data-end=\"1438\">iOS important questions along with detailed solutions<\/strong>. This helps students to understand the correct methodology and improve problem-solving skills. Practicing solved questions enhances confidence for the actual exam.<\/p>\n<p data-start=\"1609\" data-end=\"1692\"><strong data-start=\"1614\" data-end=\"1690\">Q5. How should I use the iOS important questions for effective revision?<\/strong><\/p>\n<p data-start=\"1693\" data-end=\"1725\"><strong data-start=\"1693\" data-end=\"1701\">Ans: <\/strong>Follow this strategy:<\/p>\n<ul data-start=\"1726\" data-end=\"1953\">\n<li data-start=\"1726\" data-end=\"1780\">\n<p data-start=\"1728\" data-end=\"1780\"><strong data-start=\"1728\" data-end=\"1761\">Practice 5\u201310 questions daily<\/strong> from each section.<\/p>\n<\/li>\n<li data-start=\"1781\" data-end=\"1837\">\n<p data-start=\"1783\" data-end=\"1837\">Attempt <strong data-start=\"1791\" data-end=\"1810\">topic-wise MCQs<\/strong> after reading the chapter.<\/p>\n<\/li>\n<li data-start=\"1838\" data-end=\"1886\">\n<p data-start=\"1840\" data-end=\"1886\">Solve <strong data-start=\"1846\" data-end=\"1885\">mock tests and sample papers weekly<\/strong>.<\/p>\n<\/li>\n<li data-start=\"1887\" data-end=\"1953\">\n<p data-start=\"1889\" data-end=\"1953\">Use <strong data-start=\"1893\" data-end=\"1928\">solutions to learn explanations<\/strong> and eliminate guesswork.<\/p>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>iOS Important Questions for 2025-26 Exam: The International Olympiad of Science (iOS) is a prestigious examination conducted by the SilverZone Foundation that aims to assess the scientific knowledge and aptitude of students from Class 1 to Class 12. As the 2025-26 session approaches, students and parents are increasingly seeking structured preparation material. One of the [&hellip;]<\/p>\n","protected":false},"author":55,"featured_media":290813,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[12233,12235,12229,12234,12227,12228,12236,12230,12231,12232],"class_list":["post-290812","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-olympiad","tag-important-questions-for-ios-exam","tag-indian-olympiad-school-questions","tag-ios-2025-exam-preparation","tag-ios-2025-sample-questions","tag-ios-2025-26-important-questions","tag-ios-class-wise-important-questions","tag-ios-exam-strategy-2025","tag-ios-olympiad-important-questions","tag-ios-practice-questions-class-1-to-12","tag-ios-science-olympiad-questions"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>iOS Important Questions for 2025-26 Exam<\/title>\n<meta name=\"description\" content=\"Discover class-wise iOS Important Questions for the 2025\u201326 exam. 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