Class 12 Chemistry Extra Questions and Answers Free PDF Download
The Chemistry important questions provided on this page are carefully selected from a wide range of resources, including the NCERT textbook, pyq’s, and sample papers. These questions focus on the most important concepts from each chapter, making them highly useful for effective exam preparation.
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Students preparing under the CBSE Class 12 Chemistry Syllabus can use these chapter-wise important questions to strengthen their understanding and improve their answer-writing skills. Each set of questions is organised concept-wise and aligned with the latest exam pattern to help students revise systematically.
Regular practice of these Class 12 important questions supports quick chapter revision, better clarity of key topics, and improved performance in the final board examination.
CBSE Class 12 Chemistry Chapter-wise Important Questions
CBSE Class 12 Chemistry Chapter-wise Important Questions and Answers cover topics from all 10 chapters, helping students prepare thoroughly by focusing on key topics for easier revision.
FAQs on Important Questions For Class 12 Chemistry - 2025-26
1. What types of questions are considered important for the CBSE Class 12 Chemistry board exam for 2025-26?
For the Class 12 Chemistry exam, important questions are typically a mix of formats designed to test different skills. You should focus on:
- Numerical Problems: Especially from chapters like Solutions, Electrochemistry, and Chemical Kinetics.
- Organic Chemistry Conversions: Multi-step problems involving synthesis or conversion of organic compounds.
- Name Reactions and Mechanisms: Questions that ask you to write, explain, or apply a specific named reaction.
- Reasoning-Based Questions: Often framed as 'Give Reason' or 'Explain Why', particularly for topics in d- and f-Block Elements and Coordination Compounds.
- Distinction Tests: Chemical tests to differentiate between pairs of organic compounds.
- Definitions and Laws: Stating and explaining fundamental laws like Raoult's Law or Kohlrausch's Law.
2. Which chapters have the highest weightage for important questions in the Class 12 Chemistry syllabus for 2025-26?
Based on the CBSE syllabus and past trends, certain chapters consistently have higher marks weightage. For the 2025-26 exams, you should pay special attention to preparing important questions from:
- Electrochemistry
- Chemical Kinetics
- d- and f-Block Elements
- Aldehydes, Ketones and Carboxylic Acids
- Biomolecules
While these are high-weightage, it is crucial to cover the entire syllabus, as questions can be interlinked and cover multiple concepts.
3. How can practising important questions help me score above 95% in the Class 12 Chemistry board exam?
Scoring above 95% requires a strategic approach, and important questions are key to this. They help by:
- Ensuring Comprehensive Coverage: They force you to practise the most frequently tested concepts and high-weightage topics, leaving no gaps in your preparation.
- Improving Answer Presentation: By practising, you learn how to structure your answers, write mechanisms, and present numerical solutions exactly as expected by CBSE evaluators.
- Mastering Time Management: Solving these questions under timed conditions helps you build speed and accuracy, which is crucial for completing the exam on time.
- Building Confidence: Familiarity with the question patterns and types reduces exam anxiety and helps you tackle even the most challenging questions effectively.
4. What is the difference between important questions and questions from previous year papers (PYQPs)?
There is a key difference between the two resources. Previous Year Question Papers (PYQPs) are the exact questions that have appeared in past board exams. They show historical trends and the marking scheme. On the other hand, a list of Important Questions is a curated, predictive set prepared by subject matter experts. It includes high-frequency PYQPs but also new, potential questions based on the latest 2025-26 syllabus, changes in pattern, and topics that are likely to be asked. Important questions offer a more forward-looking preparation tool.
5. How should I use important questions for effective revision right before the board exam?
For effective revision, integrate important questions strategically. First, complete a chapter, then solve its important questions to test your understanding. In the final weeks before the exam, use a collection of important questions as a mock test. Set a timer and attempt to solve them to simulate exam conditions. Make a note of any questions or concepts you struggle with and revisit those specific topics one last time. This method reinforces learning and pinpoints your weakest areas for final polishing.
6. Are HOTS (Higher Order Thinking Skills) questions included in a set of important questions for Class 12 Chemistry?
Yes, a good collection of important questions must include HOTS (Higher Order Thinking Skills) questions. The CBSE board exam paper is designed to test not just memory but also analytical and application skills. Important questions prepare you for this by including complex numericals, application-based reasoning problems, and organic chemistry puzzles that may require linking concepts from multiple chapters. Practising these ensures you are prepared for the high-difficulty section of the exam.
7. How do important questions help in managing the difficulty level of the Class 12 Chemistry syllabus?
The Class 12 Chemistry syllabus can seem vast and challenging. Important questions help manage this difficulty by providing a structured path. They allow you to prioritise your efforts on topics that yield the most marks. By breaking down complex chapters into a series of testable questions, they make learning more targeted and less overwhelming. This focused practice builds a strong conceptual foundation and boosts confidence, making the overall subject feel more manageable.
8. Besides solving numericals, what other types of important questions should I focus on in Physical and Organic Chemistry?
While numericals are crucial, you must focus on other formats too. For Physical Chemistry, prioritise graph-based questions (e.g., from Chemical Kinetics), derivations of integrated rate equations, and conceptual questions on colligative properties. For Organic Chemistry, focus on name reactions, reaction mechanisms, a series of 'A gives B gives C' type conversion problems, and chemical tests to distinguish between compounds. These questions test deep conceptual understanding and are very common in board exams.
