{"id":296890,"date":"2026-02-23T13:39:19","date_gmt":"2026-02-23T08:09:19","guid":{"rendered":"https:\/\/www.aakash.ac.in\/blog\/?p=296890"},"modified":"2026-02-24T11:21:13","modified_gmt":"2026-02-24T05:51:13","slug":"most-repeated-questions-in-cbse-class-10-science-board-exams-pyq-guide","status":"publish","type":"post","link":"https:\/\/www.aakash.ac.in\/blog\/most-repeated-questions-in-cbse-class-10-science-board-exams-pyq-guide\/","title":{"rendered":"Most Repeated Questions in CBSE Class 10 Science Board Exams (PYQ Guide)"},"content":{"rendered":"<p>If you want high marks in Class 10 Science, start with most repeated questions from PYQs. At Aakash, our analysis of the previous question papers shows clear patterns for certain diagrams, numericals, and definitions. Practising these through the CBSE Class 10 Science Sample Paper and curated lists of important questions can secure a strong score quickly. This guide highlights those recurring questions subject-wise, based on trends followed.<\/p>\n<h2><strong>Physics: High-Frequency Questions in Class 10 Science<\/strong><\/h2>\n<p><span style=\"font-weight: 400;\">Physics questions repeat because concepts remain constant.<\/span><\/p>\n<h3><strong>Electricity (Most Repeated Unit)<\/strong><\/h3>\n<table>\n<tbody>\n<tr>\n<td><b>Repeated Question<\/b><\/td>\n<td><b>Format<\/b><\/td>\n<td><b>Must Practice<\/b><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.aakash.ac.in\/blog\/what-is-ohms-law-definition-formula-graph-applications-limitations\/\"><span style=\"font-weight: 400;\">Ohm\u2019s Law numericals<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">Numerical<\/span><\/td>\n<td><span style=\"font-weight: 400;\">V = IR problems<\/span><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.aakash.ac.in\/important-concepts\/physics\/resistors-in-series-and-parallel-configuration\"><span style=\"font-weight: 400;\">Resistance in series\/parallel<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">Easy scoring<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Equivalent resistance<\/span><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.aakash.ac.in\/ncert-solutions\/class-10\/science\/chapter-12-electricity\"><span style=\"font-weight: 400;\">Electric power calculations<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">Direct formula-based<\/span><\/td>\n<td><span style=\"font-weight: 400;\">P = VI, P = I\u00b2R<\/span><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.aakash.ac.in\/blog\/web-stories\/physics-cbse-revision-notes-on-disadvantages-of-heating-effect-of-current\/\"><span style=\"font-weight: 400;\">Heating effect of current<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">Application based<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Fuse, appliances<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">Almost every <\/span><a href=\"https:\/\/www.aakash.ac.in\/boards\/cbse-class-10th-previous-years-question-papers-solutions\"><b>Previous Year Question Paper Class 10 Science<\/b><\/a><span style=\"font-weight: 400;\"> includes at least one numerical from Electricity.<\/span><\/p>\n<h3><strong>Light: Reflection &amp; Refraction<\/strong><\/h3>\n<table>\n<tbody>\n<tr>\n<td><b>Repeated Question<\/b><\/td>\n<td><b>Format<\/b><\/td>\n<td><b>Must Practise<\/b><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.aakash.ac.in\/blog\/the-ray-optics-of-spherical-mirrors\/\"><span style=\"font-weight: 400;\">Ray diagrams (mirror\/lens)<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">Diagram + explanation<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Sign convention<\/span><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.aakash.ac.in\/important-concepts\/physics\/mirror-formula\"><span style=\"font-weight: 400;\">Mirror formula numericals<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">Calculation<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1\/f = 1\/v + 1\/u<\/span><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.aakash.ac.in\/blog\/what-is-magnification-definition-types-examples-applications\/\"><span style=\"font-weight: 400;\">Magnification<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">Short problem<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Image nature<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">Tip: To score well in light questions practise labelled diagrams daily.<\/span><\/p>\n<h4><strong>For Human Eye &amp; Optical Instruments frequently repeated Short Answer Questions:<\/strong><\/h4>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.aakash.ac.in\/important-concepts\/physics\/eye-and-its-defects\"><span style=\"font-weight: 400;\">Defects of vision and corrections<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.aakash.ac.in\/important-concepts\/physics\/power-of-a-lens\"><span style=\"font-weight: 400;\">Power of lens calculation<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.aakash.ac.in\/important-concepts\/physics\/human-eye-function\"><span style=\"font-weight: 400;\">Working of the human eye<\/span><\/a><\/li>\n<\/ul>\n<h2><strong>Chemistry: NCERT-Based Repetition in Class 10 Science<\/strong><\/h2>\n<p><span style=\"font-weight: 400;\">Chemistry questions<\/span><span style=\"font-weight: 400;\"> are highly predictable, often coming direct from NCERT,\u00a0 because they stick to textbook reactions based on <a href=\"https:\/\/www.aakash.ac.in\/boards\/cbse-class-10-science-syllabus\">Class 10 science Syllabus<\/a> for board exam.<\/span><\/p>\n<h3><strong>Chemical Reactions &amp; Equations<\/strong><\/h3>\n<table>\n<tbody>\n<tr>\n<td><b>Repeated Question<\/b><\/td>\n<td><b>Focus Area<\/b><\/td>\n<td><b>Must Practise<\/b><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.aakash.ac.in\/important-concepts\/chemistry\/balancing-redox-reactions\"><span style=\"font-weight: 400;\">Balance equations<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">Step method<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Hit-and-trial method<\/span><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.aakash.ac.in\/important-concepts\/chemistry\/name-reactions\"><span style=\"font-weight: 400;\">Identify reaction type<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">Short Answer<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Combination, displacement<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\"><a href=\"https:\/\/www.aakash.ac.in\/blog\/web-stories\/what-is-corrosion-definition-from-ncert-books\/\">Corrosion<\/a> and <a href=\"https:\/\/www.aakash.ac.in\/blog\/web-stories\/what-is-rancidity-and-how-it-can-be-prevented\/\">rancidity<\/a><\/span><\/td>\n<td><span style=\"font-weight: 400;\">Conceptual<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Real-life examples<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><strong>Acids, Bases and Salts\u00a0<\/strong><\/h3>\n<p><span style=\"font-weight: 400;\">The following are the common long and short questions. These appear frequently in the <\/span><b>CBSE Class 10 Science Sample Paper<\/b> <span style=\"font-weight: 400;\">sets:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.aakash.ac.in\/important-concepts\/chemistry\/acidity-and-ph-scale\"><span style=\"font-weight: 400;\">pH scale interpretation<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.aakash.ac.in\/important-concepts\/chemistry\/acids-and-bases\"><span style=\"font-weight: 400;\">Properties of acids vs bases<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.aakash.ac.in\/blog\/web-stories\/chemistry-class-10-mention-the-2-uses-of-baking-soda-and-washing-soda\/\"><span style=\"font-weight: 400;\">Uses of baking soda, washing soda<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.aakash.ac.in\/important-concepts\/chemistry\/neutralisation-reaction\"><span style=\"font-weight: 400;\">Neutralisation reactions<\/span><\/a><\/li>\n<\/ul>\n<h3><strong>Metals and Non-Metals<\/strong><\/h3>\n<table>\n<tbody>\n<tr>\n<td><b>Repeated Question<\/b><\/td>\n<td><b>Format<\/b><\/td>\n<td><b>Must Practise<\/b><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.aakash.ac.in\/important-concepts\/chemistry\/electrochemical-series\"><span style=\"font-weight: 400;\">Reactivity series<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">Direct theory<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Correct order<\/span><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.aakash.ac.in\/important-concepts\/chemistry\/extraction-of-crude-metal-from-concentrated-ore\"><span style=\"font-weight: 400;\">Extraction of metals<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">Long answer \/ Flowchart<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Steps involved<\/span><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.aakash.ac.in\/important-concepts\/chemistry\/Ionic-bonding\"><span style=\"font-weight: 400;\">Ionic compounds properties<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">Conceptual<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Melting point, conductivity<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><strong>Carbon and Its Compounds is a very high scoring unit. Repeated questions include:<\/strong><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.aakash.ac.in\/important-concepts\/chemistry\/covalent-bond\"><span style=\"font-weight: 400;\">Covalent bonding diagrams<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.aakash.ac.in\/important-concepts\/chemistry\/functional-group\"><span style=\"font-weight: 400;\">Functional groups identification<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.aakash.ac.in\/important-concepts\/chemistry\/homologous-series\"><span style=\"font-weight: 400;\">Homologous series definition<\/span><\/a><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Many <\/span><b>important questions for Class 10 Science<\/b><span style=\"font-weight: 400;\"> compilations place this chapter at the top.<\/span><\/p>\n<h2><strong>Biology: Diagram-Heavy Repetition in Class 10 Science<\/strong><\/h2>\n<p><span style=\"font-weight: 400;\">Biology tends to reward labelled diagrams and keywords oriented answering. The following kinds of questions are the most repeated.<\/span><\/p>\n<h3><strong>Life Processes<\/strong><\/h3>\n<table>\n<tbody>\n<tr>\n<td><b>Repeated Question<\/b><\/td>\n<td><b>Format<\/b><\/td>\n<td><b>Must Practise<\/b><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.aakash.ac.in\/important-concepts\/chemistry\/human-digestive-system\"><span style=\"font-weight: 400;\">Human digestive system<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">Labelled diagram<\/span><\/td>\n<td><a href=\"https:\/\/www.aakash.ac.in\/blog\/digestive-system-organs-functions-process-anatomy-and-faqs\/\"><span style=\"font-weight: 400;\">Organs and functions<\/span><\/a><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.aakash.ac.in\/important-concepts\/biology\/respiration-and-its-types\"><span style=\"font-weight: 400;\">Respiration types<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">Comparison<\/span><\/td>\n<td><a href=\"https:\/\/www.aakash.ac.in\/important-concepts\/biology\/aerobic-and-anaerobic-respiration\"><span style=\"font-weight: 400;\">Aerobic vs anaerobic<\/span><\/a><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.aakash.ac.in\/important-concepts\/biology\/transport-plants\"><span style=\"font-weight: 400;\">Transportation in plants<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">Short answer<\/span><\/td>\n<td><a href=\"https:\/\/www.aakash.ac.in\/important-concepts\/biology\/difference-between-xylem-and-phloem\"><span style=\"font-weight: 400;\">Xylem and phloem roles<\/span><\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><strong>Control and Coordination<\/strong><\/h3>\n<p><span style=\"font-weight: 400;\">Frequently asked:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.aakash.ac.in\/important-concepts\/biology\/reflex-action-and-reflex-arc\"><span style=\"font-weight: 400;\">Reflex action pathway diagram<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.aakash.ac.in\/important-concepts\/biology\/plant-hormones\"><span style=\"font-weight: 400;\">Plant hormones and functions<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.aakash.ac.in\/important-concepts\/biology\/nervous-system\"><span style=\"font-weight: 400;\">Nervous vs endocrine system differences<\/span><\/a><\/li>\n<\/ul>\n<h3><strong>Reproduction<\/strong><\/h3>\n<table>\n<tbody>\n<tr>\n<td><b>Repeated Question<\/b><\/td>\n<td><b>Format<\/b><\/td>\n<td><b>Must Practise<\/b><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.aakash.ac.in\/important-concepts\/biology\/human-reproduction\"><span style=\"font-weight: 400;\">Human reproductive system diagram<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">Labelled diagram<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Parts and functions<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Asexual vs sexual reproduction<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Comparison<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Examples<\/span><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.aakash.ac.in\/important-concepts\/biology\/contraceptives\"><span style=\"font-weight: 400;\">Contraceptive methods<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">Short answer<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Types and purpose<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><strong>Heredity and Evolution<\/strong><\/h3>\n<p><span style=\"font-weight: 400;\">High-probability theory questions:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.aakash.ac.in\/blog\/web-stories\/explained-mendels-laws-of-inheritance-in-biology\/\"><span style=\"font-weight: 400;\">Mendel\u2019s laws<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.aakash.ac.in\/important-concepts\/biology\/monohybrid-cross-inheritance-one-gene\"><span style=\"font-weight: 400;\">Monohybrid cross<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><a href=\"https:\/\/www.aakash.ac.in\/important-concepts\/biology\/sex-determination\">Genotype<\/a> vs phenotype<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Acquired vs inherited traits<\/span><\/li>\n<\/ul>\n<h2><strong>Environmental Science Chapters (Short but Scoring)<\/strong><\/h2>\n<p><span style=\"font-weight: 400;\">Often given less focus by many students, but these topics are usually asked as short answers or <\/span><span style=\"font-weight: 400;\">case-based questions<\/span><span style=\"font-weight: 400;\">.<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td><b>Repeated Question<\/b><\/td>\n<td><b>Format<\/b><\/td>\n<td><b>Must Practise<\/b><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.aakash.ac.in\/blog\/food-chain-definition-types-importance-examples\/\"><span style=\"font-weight: 400;\">Food chains and food webs<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">Diagram \/ Short answer<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Trophic levels<\/span><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.aakash.ac.in\/important-concepts\/biology\/ozone-layer-depletion\"><span style=\"font-weight: 400;\">Ozone depletion<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">Conceptual<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Causes and effects<\/span><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.aakash.ac.in\/important-concepts\/chemistry\/waste\"><span style=\"font-weight: 400;\">Waste management methods<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">Short answer<\/span><\/td>\n<td><span style=\"font-weight: 400;\">3Rs, segregation<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Sustainable development<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Conceptual<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Key principles<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><strong>Most Repeated Diagram Questions<\/strong><\/h2>\n<table>\n<tbody>\n<tr>\n<td><b>Subject<\/b><\/td>\n<td><b>Repeated Question<\/b><\/td>\n<td><b>Format<\/b><\/td>\n<td><b>Must Practise<\/b><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Physics<\/span><\/td>\n<td><span style=\"font-weight: 400;\"><a href=\"https:\/\/www.aakash.ac.in\/important-concepts\/physics\/image-formation-in-convex-mirror\">Ray diagrams<\/a>, <a href=\"https:\/\/www.aakash.ac.in\/important-concepts\/physics\/electric-circuit\">electric circuit<\/a><\/span><\/td>\n<td><span style=\"font-weight: 400;\">Diagram<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Correct labels<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Chemistry<\/span><\/td>\n<td><a href=\"https:\/\/www.aakash.ac.in\/important-concepts\/chemistry\/covalent-bond\"><span style=\"font-weight: 400;\">Covalent bonding structures<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">Diagram<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Electron dots<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Biology<\/span><\/td>\n<td><span style=\"font-weight: 400;\"><a href=\"https:\/\/www.aakash.ac.in\/blog\/organ-systems-in-the-human-body\/\">Human organs<\/a>, <a href=\"https:\/\/www.aakash.ac.in\/important-concepts\/biology\/reflex-action-and-reflex-arc\">reflex arc<\/a><\/span><\/td>\n<td><span style=\"font-weight: 400;\">Diagram<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Neat presentation<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">Practising diagrams from the <\/span><b>CBSE Class 10 Science Sample Paper<\/b><span style=\"font-weight: 400;\"> improves presentation marks.<\/span><\/p>\n<h2><strong>Also Read: Some Important Articles for Class 10 Science Exam 2026<\/strong><\/h2>\n<ul>\n<li><a href=\"https:\/\/www.aakash.ac.in\/blog\/cbse-class-10-science-smart-practice-guide\/\" target=\"_blank\" rel=\"noopener\">Smart Practice with Class 10 Science Previous Year Papers &amp; Solutions<br \/>\n<\/a><\/li>\n<li><a href=\"https:\/\/www.aakash.ac.in\/blog\/class-10-science-paper-pattern-marks-distribution-important-topics\/\" target=\"_blank\" rel=\"noopener\">Class 10 Science Paper Pattern: Marks Distribution &amp; Important Topics<br \/>\n<\/a><\/li>\n<li><a href=\"https:\/\/www.aakash.ac.in\/blog\/tips-for-class-10-science-final-revision-important-questions-and-formulas\/\" target=\"_blank\" rel=\"noopener\">Tips for Class 10 Science Final Revision: Important Questions &amp; Formulas<br \/>\n<\/a><\/li>\n<li><a href=\"https:\/\/www.aakash.ac.in\/blog\/how-to-score-high-in-science-board-exam-paper-class-10-simple-preparation-tips\/\" target=\"_blank\" rel=\"noopener\">How to Score High in Class 10 Science: Smart Preparation Tips<br \/>\n<\/a><\/li>\n<li><a href=\"https:\/\/www.aakash.ac.in\/blog\/cbse-class-10-science-top-scoring-units-subject-wise\/\" target=\"_blank\" rel=\"noopener\">Class 10 Science Easy &amp; High Scoring Units \u2013 Subject-wise Guide<br \/>\n<\/a><\/li>\n<li><a href=\"https:\/\/www.aakash.ac.in\/blog\/important-diagrams-for-class-10-science-question-paper\/\" target=\"_blank\" rel=\"noopener\">Important Diagrams of Class 10 Science with Questions (Board Exam)<br \/>\n<\/a><\/li>\n<li><a href=\"https:\/\/www.aakash.ac.in\/blog\/cbse-class-10-science-board-paper-2026-chapter-wise-formulas\/\" target=\"_blank\" rel=\"noopener\">Important Formulas of Class 10 Science (Chapter-wise) with MCQs<br \/>\n<\/a><\/li>\n<li><a href=\"https:\/\/www.aakash.ac.in\/blog\/class-10-science-exam-2026-complete-guide-syllabusexam-pattern-weightage\/\" target=\"_blank\" rel=\"noopener\">Class 10 Science Exam 2026 Complete Guide: Syllabus, Exam Pattern &amp; Weightage<br \/>\n<\/a><\/li>\n<\/ul>\n<h2><strong>CBSE Exam Class 10 Syllabus, Sample Papers &amp; Solutions (2026)<\/strong><\/h2>\n<ul>\n<li><a href=\"https:\/\/www.aakash.ac.in\/boards\/cbse-class-10-date-sheet\">CBSE Class 10 Date Sheet 2026<\/a><\/li>\n<li><a href=\"https:\/\/www.aakash.ac.in\/boards\/cbse-class-10-syllabus\">CBSE Class 10 Syllabus 2026<\/a><\/li>\n<li><a href=\"https:\/\/www.aakash.ac.in\/boards\/cbse-class-10-sample-papers\">CBSE Class 10 Sample Papers 2026<\/a><\/li>\n<li><a href=\"https:\/\/www.aakash.ac.in\/boards\/cbse-class-10-mock-test-paper-solutions\">CBSE Class 10 Mock Test Paper Solutions<\/a><\/li>\n<\/ul>\n<p><strong>Visual Story:<\/strong><\/p>\n<ul>\n<li><strong> <a href=\"https:\/\/www.aakash.ac.in\/blog\/web-stories\/cbse-class-10-science-complete-last-minute-guide-2026\/\">CBSE 10th Science 2026 Complete Visual Guide<\/a><\/strong><\/li>\n<li><strong><a href=\"https:\/\/www.aakash.ac.in\/blog\/web-stories\/important-diagrams-for-class-10-science-question-paper\/\">Important Diagrams for Class 10 Science Question Paper<\/a><\/strong><\/li>\n<\/ul>\n<h2><strong>Smart Strategy to Use PYQs in Class 10 Science (What Toppers Do)<\/strong><\/h2>\n<p><span style=\"font-weight: 400;\">Here are 5 proven strategies that have helped toppers over the years:\u00a0<\/span><\/p>\n<h3><strong>1. Solve at least 5 full papers<\/strong><\/h3>\n<p><span style=\"font-weight: 400;\">Toppers treat every previous year question paper like a real exam. Sit for a full 3 hours, no breaks, no phone. This builds stamina and reduces panic on the actual day. Many students know answers but lose marks due to exam pressure. Simulated practice fixes that.<\/span><\/p>\n<h3><strong>2. Analyse mistakes topic-wise<\/strong><\/h3>\n<p>Checking answers is not enough. Group mistakes by chapter. For example, repeated errors in numericals from Electricity or confusion in Carbon compounds reactions signal weak areas. Maintain a \u201cmistake notebook\u201d for Class 10 Science. Review it before every mock test.<\/p>\n<h3><strong>3. Revise all the repeated areas<\/strong><\/h3>\n<p><span style=\"font-weight: 400;\">PYQs reveal patterns. If ray diagrams, Mendel\u2019s laws, or pH questions appear frequently, prioritise them. This is why curated lists of <\/span><b>important questions for Class 10 Science<\/b><span style=\"font-weight: 400;\"> are powerful. Smart revision beats random revision.<\/span><\/p>\n<h3><strong>4. Practise time management<\/strong><\/h3>\n<p><span style=\"font-weight: 400;\">Divide your paper strategy beforehand. Attempt easy 1-markers first, then medium questions, and keep long answers for later. Use the <\/span><a href=\"https:\/\/www.aakash.ac.in\/boards\/cbse-class-10-science-sample-question-paper-solutions\"><b>CBSE Class 10 Science Sample Paper<\/b><\/a><span style=\"font-weight: 400;\"> to test different approaches and see what suits you best.<\/span><\/p>\n<h3><strong>5. Quick Revision Checklist<\/strong><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Definitions from NCERT: Many direct questions come straight from textbook lines. Learn exact wording.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Formula sheet for Physics: Revise daily. Most Physics questions are formula based.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Chemical equations list: Balance them from memory. Reaction conditions matter.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\">Biology diagrams notebook: Practise neat, labelled diagrams. They fetch guaranteed marks in Class 10 Science exams.<\/li>\n<\/ul>\n<h2><strong>CBSE 10 Class Board\u00a0Exam 2026 Preparation Tips &amp; Strategy<\/strong><\/h2>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><a title=\"CBSE Class 10 Exam Preparation Tips 2026\" href=\"https:\/\/www.aakash.ac.in\/blog\/cbse-class-10-exam-preparation-tips\/\">CBSE Class 10 Exam Preparation Tips 2026 \u2013 Complete Subject-Wise Guide<\/a><\/li>\n<li><a title=\"How to Score Good Marks in CBSE Class 10 2026\" href=\"https:\/\/www.aakash.ac.in\/blog\/how-to-score-good-marks-in-cbse-class-10-2026\/\">How to Score Good Marks in CBSE Class 10 Board Exam 2026<\/a><\/li>\n<li><a title=\"Best Revision Strategy for Class 10 Board Exam 2026\" href=\"https:\/\/www.aakash.ac.in\/blog\/best-revision-strategy-for-class-10-board-2026-students\/\">Best Revision Strategy for Class 10 Board Exam 2026 Students<\/a><\/li>\n<li><a title=\"How to Score Above 90 Percent in CBSE Class 10\" href=\"https:\/\/www.aakash.ac.in\/blog\/how-to-score-above-90-percent-in-cbse-board-for-class-10\/\">Smart Study Tips to Score Above 90% in CBSE Class 10 Board Exam 2026<\/a><\/li>\n<li><a title=\"Last Month Preparation for CBSE Class 10 Board Exam 2026\" href=\"https:\/\/www.aakash.ac.in\/blog\/how-to-prepare-for-cbse-class-10-board-exams-2026-in-last-one-month\/\">How to Prepare for CBSE Class 10 Board Exam 2026 Before the Exam<\/a><\/li>\n<li><a title=\"Download CBSE Class 10 Syllabus 2026 PDF\" href=\"https:\/\/www.aakash.ac.in\/blog\/download-cbse-class-10-subject-wise-syllabus-2026-pdf\/\">Download CBSE Class 10 Subject-Wise Syllabus 2025-26 PDF<\/a><\/li>\n<li><a title=\"CBSE Class 10 Percentage Calculation from CGPA\" href=\"https:\/\/www.aakash.ac.in\/blog\/cbse-class-10-board-percentage-calculation-from-cgpa\/\">CBSE Class 10 Board Percentage Calculation from CGPA<\/a><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2><strong>Final Takeaway<\/strong><\/h2>\n<p><span style=\"font-weight: 400;\">Scoring high in <\/span><b>Class 10 Science<\/b><span style=\"font-weight: 400;\"> is less about studying everything and more about studying smart. Repeated questions from the list of <\/span><b>important questions for Class 10 Science<\/b><span style=\"font-weight: 400;\">, and timed solving of the <\/span><b>CBSE Class 10 Science Sample Paper<\/b><span style=\"font-weight: 400;\"> can dramatically improve results. Focus on diagrams, numericals, and NCERT-based theory. Revise fast. Practise consistently. Walk into the exam confident.<\/span><\/p>\n<h2><strong>FAQs<\/strong><\/h2>\n<h3><strong>Q1. Which chapters give maximum marks in Class 10 Science?<\/strong><\/h3>\n<p><span style=\"font-weight: 400;\">Electricity, Light, Carbon and Compounds, Life Processes, and Heredity consistently carry high weightage in Class 10 Science.<\/span><\/p>\n<h3><strong>Q2. How many important questions for Class 10 Science should I practise?<\/strong><\/h3>\n<p><span style=\"font-weight: 400;\">Focus on 50 to 70 high-frequency questions from PYQs and sample papers rather than random practice.<\/span><\/p>\n<h3><strong>Q3. Are PYQs enough to score well in boards?<\/strong><\/h3>\n<p><span style=\"font-weight: 400;\">PYQs cover the pattern and commonly repeated concepts. Combine them with NCERT reading for the best results.<\/span><\/p>\n<h3><strong>Q4. How useful is the CBSE Class 10 Science Sample Paper?<\/strong><\/h3>\n<p><span style=\"font-weight: 400;\">Very useful. It reflects the latest exam pattern and question style introduced by CBSE.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>If you want high marks in Class 10 Science, start with most repeated questions from PYQs. At Aakash, our analysis of the previous question papers shows clear patterns for certain diagrams, numericals, and definitions. Practising these through the CBSE Class 10 Science Sample Paper and curated lists of important questions can secure a strong score [&hellip;]<\/p>\n","protected":false},"author":61,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3581,27311],"tags":[27512,27525,27526],"class_list":["post-296890","post","type-post","status-publish","format-standard","hentry","category-cbse","category-cbse-class-10","tag-class-10-science-exam-2026","tag-class-10-science-important-topics","tag-science-class-10-important-pyqs"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Most Repeated Questions in CBSE Class 10 Science Board Exams (PYQ Guide)<\/title>\n<meta name=\"description\" content=\"Most repeated Class 10 Science board questions from PYQs, key topics, diagrams, numericals. 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