{"id":150357,"date":"2022-04-26T13:00:07","date_gmt":"2022-04-26T07:30:07","guid":{"rendered":"https:\/\/www.aakash.ac.in\/blog\/?p=150357"},"modified":"2023-04-02T21:06:53","modified_gmt":"2023-04-02T15:36:53","slug":"jee-main-chemistry-important-questions-on-oxygen","status":"publish","type":"post","link":"https:\/\/www.aakash.ac.in\/blog\/jee-main-chemistry-important-questions-on-oxygen\/","title":{"rendered":"JEE Main 2023 Chemistry: Important questions on Oxygen"},"content":{"rendered":"

\"jee<\/a>
\nNTA is going to hold <\/span>JEE Mains exam<\/span><\/a>, Joint Entrance Exam (Mains), 2022. Physics, Mathematics, and Chemistry, all three subjects have equal weightage in JEE Mains 2022 exam. There are 75 questions from all three subjects, and for each subject, 100 marks are allotted.<\/span><\/p>\n

NTA has released all the Jee Mains 2022 Important dates<\/a><\/span>\u00a0and announcements. And exam date is also near to reach. So it’s time for aspirants to summarise their preparations and peek at the quick revision notes of important topics.<\/span><\/p>\n

One of these topics is Oxygen. Among the Chemistry section questions, you can easily spot 5-6 questions related to Oxygen. Whether in Physical Chemistry, Inorganic Chemistry<\/a>, or Organic Chemistry, Oxygen plays an important role and shows its different properties and nature.<\/span><\/p>\n

This article will help you with some important questions related to Oxygen from overall Chemistry.<\/span><\/p>\n

Oxygen, one of the most important elements of the Periodic Table, is an important part of every living organism. It is the Earth’s most abundant element after Hydrogen and Helium and the third most abundant element in the world.<\/span><\/p>\n

It is expected for Oxygen related questions to weigh around 20-25 marks in JEE Mains 2022 Chemistry section. Let’s look and get to know more about topics and important questions related to Oxygen.<\/span><\/p>\n

Highlights About JEE mains 2022<\/h3>\n

Joint Entrance Exam (JEE Mains) 2022 is a national-level entrance exam for B.E., B.Tech., B. Arch., and B. Planning courses. You can enrol in IITs, NITs, or any Centrally Funded engineering institutes. The main highlights of JEE Mains 2022 are as follows:<\/span><\/p>\n\n\n\n\n\n\n\n\n\n\n
Particulars<\/b><\/td>\nDetails<\/b><\/td>\n<\/tr>\n
Mode of examination<\/span><\/td>\n\n
    \n
  • Computed Based Test for B.E. \/ B. Tech. \/ B. Arch. \/ B. Planning<\/span><\/li>\n
  • Pen and paper-based for the Drawing section in B. Arch.<\/span><\/li>\n<\/ul>\n<\/td>\n<\/tr>\n
Duration of examination<\/span><\/td>\n\n
    \n
  • 3 hours for B. Tech. \/ B. Arch. \/ B. Planning<\/span><\/li>\n
  • 3 and half hours for B. Arch. and B. Planning both<\/span><\/li>\n<\/ul>\n<\/td>\n<\/tr>\n
Exam Frequency<\/span><\/td>\nTwice a year<\/span><\/td>\n<\/tr>\n
Paper<\/span><\/td>\n\n
    \n
  • Paper-1:\u00a0 B.E. \/ B. Tech.<\/span><\/li>\n
  • Paper-2A: B. Arch.<\/span><\/li>\n
  • Paper-2B: B. Planning<\/span><\/li>\n<\/ul>\n<\/td>\n<\/tr>\n
A number of questions<\/span><\/td>\n\n
    \n
  • B.E. \/ B. Tech.: 90<\/span><\/li>\n
  • B. Arch: 82<\/span><\/li>\n
  • B. Planning: 105<\/span><\/li>\n<\/ul>\n<\/td>\n<\/tr>\n
Total marks for the exam<\/span><\/td>\n\n
    \n
  • B. E. \/ B. Tech.: 300<\/span><\/li>\n
  • B. Arch. and B. Planning: 400<\/span><\/li>\n<\/ul>\n<\/td>\n<\/tr>\n
Marking scheme<\/span><\/td>\n\n
    \n
  • 4 for each correct response<\/span><\/li>\n
  • -1 for each incorrect response<\/span><\/li>\n
  • No marks for unattempted questions<\/span><\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Topics Of Chemistry Related To Oxygen Included In JEE Mains 2022 Exam<\/h2>\n

    The topic-wise distribution of Chemistry chapters’ that are related to Oxygen for JEE mains 2022 exam are as follows:<\/span><\/p>\n

      \n
    • Redox Reactions<\/b><\/li>\n<\/ul>\n

      Topics included are:<\/span><\/p>\n

        \n
      • Electronic concepts of oxidation and reduction<\/span><\/li>\n
      • Redox reactions<\/span><\/li>\n
      • Oxidation number<\/span><\/li>\n
      • Rules for assigning oxidation number<\/span><\/li>\n
      • Balancing of redox reactions<\/span><\/li>\n<\/ul>\n

         <\/p>\n

          \n
        • Carboxylic Acids & their Derivatives<\/b><\/li>\n<\/ul>\n

          Topics included are:<\/span><\/p>\n

            \n
          • Acidic strength and factors affecting it<\/span><\/li>\n<\/ul>\n

             <\/p>\n

              \n
            • Chemical Bonding<\/b><\/li>\n<\/ul>\n

              Topics included are:<\/span><\/p>\n

                \n
              • Covalent Bonding<\/span><\/li>\n
              • Concept of electronegativity<\/span><\/li>\n
              • Valence Shell Electron Pair Repulsion (VSEPR) theory<\/span><\/li>\n
              • Fajan’s rule<\/span><\/li>\n
              • Dipole moment<\/span><\/li>\n
              • Valence bond theory<\/span><\/li>\n
              • Concept of hybridization involving s, p, and d orbitals<\/span><\/li>\n<\/ul>\n

                 <\/p>\n

                  \n
                • Alcohols, Phenols, and Ethers<\/b><\/li>\n<\/ul>\n

                  Topics included are:<\/span><\/p>\n

                    \n
                  • Alcohols:<\/span> Identification of primary, secondary, and tertiary alcohols;<\/span><\/li>\n<\/ul>\n

                    mechanism of dehydration<\/span><\/p>\n

                      \n
                    • Phenols:<\/span> Acidic nature, electrophilic substitution reactions: halogenation, nitration, and sulphonation, Reitner – Tiemann reaction<\/span><\/li>\n
                    • Ethers:<\/span> Structure<\/span><\/li>\n<\/ul>\n

                       <\/p>\n

                        \n
                      • Aldehydes and Ketones<\/b><\/li>\n<\/ul>\n

                        Topics included are:<\/span><\/p>\n

                          \n
                        • Nature of carbonyl group<\/span><\/li>\n
                        • Nucleophilic addition to >C=0 group<\/span><\/li>\n
                        • Relative reactivities of aldehydes and ketones<\/span><\/li>\n
                        • Nucleophilic addition reactions<\/span><\/li>\n
                        • Grignard reagent<\/span><\/li>\n
                        • Oxidation and Reduction<\/span><\/li>\n
                        • Aldol condensation<\/span><\/li>\n
                        • Cannizzaro reaction<\/span><\/li>\n
                        • Haloform reaction<\/span><\/li>\n<\/ul>\n

                           <\/p>\n

                            \n
                          • p-Block Elements<\/b><\/li>\n<\/ul>\n

                            Topics included are:<\/span><\/p>\n

                              \n
                            • Structures and uses of ozone<\/span><\/li>\n
                            • Structures of oxoacids of sulphur<\/span><\/li>\n<\/ul>\n

                               <\/p>\n

                              Expected Weightage of Oxygen Related Topics In JEE Mains 2022 Exam<\/h3>\n

                              Due to the vast syllabus of JEE Mains, it is hard to predict which topic will be given more importance every year. But, from the previous years’ papers, you can deduce some information about this and analyse it.<\/span><\/p>\n

                              The expected weightage list of Oxygen related topics in JEE 2022 exam is as follows:<\/span><\/p>\n\n\n\n\n\n\n\n\n\n
                              Chapter<\/b><\/td>\nWeightage<\/b><\/td>\n<\/tr>\n
                              Redox Reaction<\/span><\/td>\n4<\/span><\/td>\n<\/tr>\n
                              Carboxylic Acids & their Derivatives<\/span><\/td>\n4<\/span><\/td>\n<\/tr>\n
                              Chemical Bonding<\/span><\/td>\n8<\/span><\/td>\n<\/tr>\n
                              Alcohols, Phenols, and Ethers<\/span><\/td>\n4<\/span><\/td>\n<\/tr>\n
                              Aldehydes and Ketones<\/span><\/td>\n4<\/span><\/td>\n<\/tr>\n
                              p-Block Elements<\/span><\/td>\n4<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                              Some Important Questions On Oxygen For JEE Mains 2022 Exam<\/h3>\n

                              Some important questions related to oxygen are as follows:<\/span><\/p>\n

                                \n
                              1. Reaction of phenol with Br2 and H2O gives A and reaction of phenol with Br2 and CS2 at less than 5o C gives B. Find the product A and B.<\/span><\/li>\n<\/ol>\n

                                Options:<\/b><\/p>\n

                                  \n
                                1. A = 1,5-dibromophenol, B = 1-bromophenol<\/span><\/li>\n
                                2. A = 1-bromophenol. B = 3-bromophenol<\/span><\/li>\n
                                3. A = 1,3,5-tribromophenol, B = 1-bromophenol<\/span><\/li>\n
                                4. A = 1,3,5-tribromophenol, B = 3-bromophenol<\/span><\/li>\n<\/ol>\n

                                   <\/p>\n

                                    \n
                                  1. S1: Methyl orange is a suitable indicator for titration of strong acid and weak base<\/span><\/li>\n<\/ol>\n

                                    S2: Phenolphthalein is not a suitable indicator for titration of acetic acid and NaOH<\/span><\/p>\n

                                    Options:<\/b><\/p>\n

                                      \n
                                    1. Both S1 and S2 are correct<\/span><\/li>\n
                                    2. S1 is correct, but S2 is incorrect<\/span><\/li>\n
                                    3. S1 is incorrect, but S2 is correct<\/span><\/li>\n
                                    4. Both S1 and S2 are<\/span><\/li>\n<\/ol>\n

                                      On heating novolac with formaldehyde, which of the following polymers will form?<\/p>\n

                                      Options:<\/b><\/p>\n

                                        \n
                                      1. Melamine<\/span><\/li>\n
                                      2. Resin<\/span><\/li>\n
                                      3. Bakelite<\/span><\/li>\n
                                      4. Polystyrene<\/span><\/li>\n<\/ol>\n

                                        Which of the following reagents gives yellow precipitate for the following sequence<\/p>\n

                                        (i)<\/span> \u00a0 <\/span>NaOH, (ii) dil. HNO<\/span>3<\/span>, (iii) AgNO<\/span>3<\/span>?<\/span><\/p>\n

                                        Options:<\/b><\/p>\n

                                          \n
                                        1. 3-methylchlorobenzene<\/span><\/li>\n
                                        2. 2-methylbromobenzene<\/span><\/li>\n
                                        3. 3-methylbromobenzene<\/span><\/li>\n
                                        4. 2-iodomethyl bromobenzene<\/span><\/li>\n<\/ol>\n

                                          Which of the following is the correct sequential method to convert benzene to 3-nitrobenzoic acid?<\/p>\n

                                          Options:<\/b><\/p>\n

                                            \n
                                          1. \u00a0<\/span>(i) CH<\/span>3<\/span>Cl + FeCl<\/span>3<\/span>, (ii) Conc. H<\/span>2<\/span>SO<\/span>4<\/span>, HNO<\/span>3<\/span> (iii) alkaline KMnO<\/span>4<\/span><\/li>\n
                                          2. (i) Conc. H<\/span>2<\/span>SO<\/span>4<\/span>, HNO<\/span>3<\/span>, (ii) CH<\/span>3<\/span>Cl + FeCl<\/span>3<\/span> (iii) alkaline KMnO<\/span>4<\/span><\/li>\n
                                          3. (i) alkaline KMnO<\/span>4<\/span>, (ii) CH<\/span>3<\/span>Cl + FeCl<\/span>3<\/span> (iii) conc. H<\/span>2<\/span>SO<\/span>4<\/span>, HNO<\/span>3<\/span><\/li>\n
                                          4. (i) alkaline KMnO<\/span>4<\/span>, (ii) conc. H<\/span>2<\/span>SO<\/span>4<\/span>, HNO<\/span>3<\/span> (iii) CH<\/span>3<\/span>Cl + FeCl<\/span>3<\/span><\/li>\n<\/ol>\n

                                            When the Zn strip is dipped in Cu(NO\u2083)\u2082<\/p>\n

                                            Options:<\/b><\/p>\n

                                              \n
                                            1. Zn undergoes reduction<\/span><\/li>\n
                                            2. Zn undergoes oxidation<\/span><\/li>\n
                                            3. Cu undergoes reduction<\/span><\/li>\n
                                            4. Cu undergoes oxidation<\/span><\/li>\n<\/ol>\n

                                              In which of the following compound oxidation states of oxygen is zero?<\/p>\n

                                              Options:<\/b><\/p>\n

                                                \n
                                              1. HOCl<\/span><\/li>\n
                                              2. HOF<\/span><\/li>\n
                                              3. HOI<\/span><\/li>\n
                                              4. HOBr<\/span><\/li>\n<\/ol>\n

                                                Which of the following compounds does not give oxygen when heated?<\/p>\n

                                                Options:<\/b><\/p>\n

                                                  \n
                                                1. HgO<\/span><\/li>\n
                                                2. KMnO\u2084<\/span><\/li>\n
                                                3. KClO\u2083<\/span><\/li>\n
                                                4. (NH\u2084)\u2082Cr\u2082O\u2087<\/span><\/li>\n<\/ol>\n

                                                  Which oxide is not acidic?<\/p>\n

                                                  Options:<\/b><\/p>\n

                                                    \n
                                                  1. SO\u2082<\/span><\/li>\n
                                                  2. CrO\u2083<\/span><\/li>\n
                                                  3. Cl\u2082O\u2087<\/span><\/li>\n
                                                  4. Fe\u2082O\u2083<\/span><\/li>\n<\/ol>\n

                                                    Which of the following is the strongest acid?<\/p>\n

                                                    Options:<\/b><\/p>\n

                                                      \n
                                                    1. o-Fluorophenol<\/span><\/li>\n
                                                    2. o-Chlorophenol<\/span><\/li>\n
                                                    3. o-Iodophenol<\/span><\/li>\n
                                                    4. o-Bromophenol<\/span><\/li>\n<\/ol>\n

                                                      Given : XNa2HAsO3 + YNaBrO3 + ZHCl \u2192 NaBr + H3AsO4 + NaCl<\/p>\n

                                                       <\/p>\n

                                                      Options:<\/b> The values of X, Y and Z in the above redox reaction are respectively :<\/span><\/p>\n

                                                      (1) 2, 1, 3<\/span><\/p>\n

                                                      (2) 3, 1, 6<\/span><\/p>\n

                                                      (3) 2, 1, 2<\/span><\/p>\n

                                                      (4) 3, 1, 4<\/span><\/p>\n

                                                      Consider the following reaction:<\/span><\/p>\n

                                                      Options:<\/b> xMnO4\u2013+ yC2O42- +zH+ \u2192 xMn2+ + 2yCO2+(z\/2)H2O<\/span><\/p>\n

                                                      The values of x, y and z in the reaction are respectively :-<\/span><\/p>\n

                                                      (1) 5, 2 and 16<\/span><\/p>\n

                                                      (2) 2, 5 and 8<\/span><\/p>\n

                                                      (3) 2, 5 and 16<\/span><\/p>\n

                                                      (4) 5, 2 and 8<\/span><\/p>\n

                                                      H2SO3(aq) + Sn4+(aq) + H2O(l) \u2192 Sn2+(aq) + HSO4\u2013(aq) + 3H+(aq)<\/span><\/p>\n

                                                      Options:<\/b> Which of the following statements is correct?<\/span><\/p>\n

                                                      (1) H2SO3 is the reducing agent because it undergoes oxidation<\/span><\/p>\n

                                                      (2) H2SO3 is the reducing agent because it undergoes reduction<\/span><\/p>\n

                                                      (3) Sn4+ is the reducing agent because it undergoes oxidation<\/span><\/p>\n

                                                      (4) Sn4+ is the oxidising agent because it undergoes oxidation<\/span><\/p>\n

                                                      Which product is formed in the following reaction:<\/span><\/p>\n

                                                        \n
                                                      1. Rank the following compounds in decreasing order of their reactivity for nitration:\u00a0<\/span><\/li>\n<\/ol>\n

                                                        Options:\u00a0<\/b><\/p>\n

                                                          \n
                                                        1. 4 > 2 > 1 > 3<\/span><\/li>\n
                                                        2. 4 > 2 > 3 > 1<\/span><\/li>\n
                                                        3. 2 > 4 > 1 > 3<\/span><\/li>\n
                                                        4. 1 > 2 > 3 > 4<\/span><\/li>\n<\/ol>\n

                                                          Conclusion<\/h3>\n

                                                          Chemistry is fun to learn. It involves an in-depth study of the topics related to chemicals and their formation. The section is very scoring. You need to gain command over the concepts to score well.<\/span><\/p>\n

                                                          It’s not hard to understand Oxygen’s properties, nature, and structure in Chemistry. It has various common uses in our day-to-day life. And the simplest is breathing. The JEE Mains exam contains a good weightage of Oxygen-related topics, making it more important to prepare for it.<\/span><\/p>\n

                                                          We tried to pack up all relevant information about Oxygen for the JEE 2022 exam in this article. We hope these will be beneficial for you.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

                                                          NTA is going to hold JEE Mains exam, Joint Entrance Exam (Mains), 2022. Physics, Mathematics, and Chemistry, all three subjects have equal weightage in JEE Mains 2022 exam. There are 75 questions from all three subjects, and for each subject, 100 marks are allotted. NTA has released all the Jee Mains 2022 Important dates\u00a0and announcements. […]<\/p>\n","protected":false},"author":1,"featured_media":133872,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3719],"tags":[1867,2314,57,2067],"class_list":["post-150357","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-jee","tag-engineering-exam-prep","tag-jee-2022","tag-jee-main","tag-jee-main-2022"],"yoast_head":"\nJEE Main 2022 Chemistry: Organic Compounds Containing Oxygen Important Questions and Notes<\/title>\n<meta name=\"description\" content=\"JEE Main Chemistry Organic Compounds Containing Oxygen: Here is a complete summary of all the important questions and notes from the chapter Oxygen when preparing for JEE Main 2022 exam on aakash.ac.in\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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