Which chapters carry the most marks in the Class 12 Maths board exam?

Calculus (Differentiation and Integration combined) carries approximately 34 out of 80 marks, making it the single highest-weighted area. Vectors, 3D Geometry, and Linear Programming add another ~17 marks.

How should I use the mark-weight map to plan revision?

Start with the groups that carry the most marks — Calculus, Vectors and 3D, and Matrices — since mastering these first maximises your score even if time is limited. Then consolidate the smaller sections like Relations, Functions, and Probability.

Can I generate board-style practice questions for Class 12 Maths from this page?

Yes. The page links directly to a Class 12 Maths AI practice test where you can paste chapter names or question samples and generate board-style questions with explanations.

NCERT reference page

NCERT Class 12 Maths — Board Mark Weightage Guide

Class 12 board papers follow a predictable mark distribution year after year. This page maps the 13 NCERT chapters into 6 mark-weight groups so students can prioritise revision time where it returns the most marks — not just work through the textbook in order.

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chapters covered

mark-weight groups

~44%

from Calculus

Mark map

Approximate board weightage per group

Relations, Functions & Inv. Trig.

~10 marks

Matrices & Determinants

~13 marks

Calculus — Differentiation

~17 marks

Calculus — Integration

~17 marks

Vectors, 3D & Linear Programming

~17 marks

Probability

~8 marks

Board paper total

80 marks theory + 20 marks internal. The mark map above covers the 80-mark written paper.

Chapters by board weightage

Revise by mark priority, not by chapter number

6 mark-weight groups

Each group shows which NCERT chapters it covers and what to focus on for the board paper. The mark figures are representative of the standard CBSE blueprint.

Relations, Functions & Inverse Trigonometry

~10 marks

Mostly 1–2 mark questions; master domain/range of inverse trig and composition of functions for quick guaranteed marks.

Relations and Functions
Inverse Trigonometric Functions

Algebra: Matrices & Determinants

~13 marks

A reliable scoring section — properties of determinants and matrix operations follow fixed patterns that repeat every year.

Matrices
Determinants

Calculus — Differentiation

~17 marks

Highest single-section weightage. Prioritise chain rule, implicit differentiation, and maxima/minima word problems.

Continuity and Differentiability
Application of Derivatives

Calculus — Integration

~17 marks

Learn the standard integral forms by heart. For area problems, sketch the region before integrating.

Integrals
Application of Integrals
Differential Equations

Vectors, 3D Geometry & Linear Programming

~17 marks

Vector and 3D questions have high formula density; Linear Programming is fully graphical and reliably scorable.

Vector Algebra
Three Dimensional Geometry
Linear Programming

Probability

~8 marks

Bayes' theorem and conditional probability appear every year. One medium question guaranteed in board papers.

Probability

Practice bridge

Turn the syllabus into a board-style practice session

Use these ready-made prompts in the practice test generator. Copy any prompt into the question input, pick the mark type, and generate a targeted set.

Prompt 1

Generate 5 board-style 4-mark questions on Application of Derivatives covering maxima, minima, and rate of change.

Prompt 2

Create a mixed Integration practice set with substitution, integration by parts, and definite integrals.

Prompt 3

Generate a full-section Matrices and Determinants drill with 1-mark, 2-mark, and 4-mark questions.

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How to use this page

A mark-weight map is a prioritisation tool, not just a chapter list

Most Class 12 Maths syllabus pages simply reproduce the NCERT chapter list in order. This page is different: it groups chapters by their board exam mark contribution so students can make informed decisions about where to invest revision time. When two months remain before the board exam, starting with Calculus (44% of the paper) and Matrices (13 marks, high predictability) is a better strategy than starting from Chapter 1.

The board paper rules in the sidebar are drawn from common examiner patterns — they highlight exactly where step marks are gained or lost, which is something a bare chapter list cannot show. Combined with the AI practice test, students can move from syllabus awareness to active question practice in a single session.