🎯 CBQ Practice

Competency Based Questions
CBSE Class 10 & 12

CBQs make up 50% of Class 10 and 30–40% of Class 12 board papers. Practice case-study, assertion-reason, and source-based questions — all subjects, chapter-wise, with answers.

10

Subjects

30

Chapters

60

CBQ Sets

10 & 12

Classes

What are Competency Based Questions?

CBSE introduced CBQs to test application and analysis skills — not just rote recall.

📖 Case Study Based

Passage + 4–5 Questions

A short passage (real-life or conceptual) is given. 3–4 MCQs and 1 short-answer question follow. Total marks: 4–5. Tests comprehension and application.

Marks: 4–5 per set

⚡ Assertion–Reason

Two Statements, Choose A/B/C/D

An Assertion (A) and a Reason (R) are given. Choose whether both are true, and whether R correctly explains A. Tests logical reasoning and conceptual clarity.

Marks: 1 per question

🗂 Source Based Integrated

Text / Data / Extract + Questions

Common in Humanities — a historical source, literary extract, map, or data table is provided. Questions test inference, analysis, and interpretation skills.

Marks: 4–5 per set

How to Attempt CBQs — 3 Key Tips

01

Read the passage twice

Read the entire passage carefully before attempting any question. The second reading helps you locate specific details quickly when answering.

02

For A-R: a two-step check

First check if both Assertion and Reason are individually true or false. Only if both are true do you then check whether R correctly explains A.

03

All answers are in the passage

For case-study and source-based questions, every answer can be derived from the given passage. Do not bring in outside knowledge — read carefully.

CBQ Marks Weightage — CBSE 2025-26

How many marks do CBQs actually carry in each subject's board paper?

Class 10

SubjectCBQ MarksTotal MarksWeightage

📐Mathematics

MCQs + A-R + Case Study

40M80M50%

🔬Science

MCQs + A-R + Case Study

40M80M50%

🌍Social Science

MCQs + Source Based

40M80M50%

📚English L&L

MCQs + Reading Passages

40M80M50%

Class 12

SubjectCBQ MarksTotal MarksWeightage

⚛️Physics

MCQs + A-R + Case Study

21M70M30%

🧪Chemistry

MCQs + A-R + Case Study

21M70M30%

🌿Biology

MCQs + A-R + Case Study

21M70M30%

📐Mathematics

MCQs + A-R + Case Study

24M80M30%

📊Accountancy

MCQs + Case Study

24M80M30%

📖English Core

MCQs + Reading Passages

24M80M30%

* CBQ marks include MCQs, Assertion-Reason, Case Study, and Source-Based questions as defined by CBSE 2025-26 sample papers. Actual distribution may vary slightly by subject paper.

Class 10 Subjects

CBQs carry 50% weightage in CBSE Class 10 board exams.

Class 12 Subjects

CBQs carry 30–40% weightage in CBSE Class 12 board exams.