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CBSE Class 12 PYQ analysis: repeated questions by subject

CBSE often repeats concepts and question types. Here is what tends to come back in each stream, and how to use PYQs well.

Paper Predict Notes · 18 Nov 2025

CBSE Class 12 PYQ analysis: repeated questions by subject — Paper Predict Notes

CBSE Class 12 papers repeat concepts and question types more than students expect. Solving PYQs chapter by chapter shows you this quickly.

Outline of CBSE Class 12 PYQ analysis: repeated questions by subject
What this guide covers

Science

  • Physics: standard derivations, ray diagrams, and numericals on capacitors, circuits and optics.
  • Chemistry: named reactions, conversions, "give reasons" questions and short numericals.
  • Biology: diagrams, differences between related terms, and processes in reproduction, genetics and biotechnology.
  • Maths: standard calculus questions, probability and linear programming.

Commerce

  • Accountancy: partnership adjustments and ratio analysis.
  • Business Studies: principles and functions, often as case studies.
  • Economics: national income, money and banking, and diagrams.

Arts

  • History: source-based questions and map work.
  • Political Science: key events and concepts, with map and cartoon questions.
  • Geography: map work and data-based questions.

Revise this faster: Class 12 Science CBSE Notes — handwritten, colour-coded notes with points often asked, PYQs and tricks in every chapter.

See the notes →

How to use PYQs

  1. Solve PYQs for each chapter after revising it.
  2. Note which question types repeat.
  3. Write full answers for repeated long questions.
  4. Solve full past papers under time in the final month.

The short version

CBSE repeats derivations, reactions, diagrams, case studies and map questions. Solve PYQs chapter by chapter, write full answers for repeated questions, and finish with timed past papers.

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