ISC Class 11 Chemistry Syllabus 2026-27

Introduction

This page provides the complete ISC Class 11 Chemistry Syllabus for the academic session 2026-27, as prescribed by the Council for the Indian School Certificate Examinations (CISCE). ISC Class 11 Chemistry covers physical, inorganic, and organic chemistry, each forming a distinct but interconnected component of the syllabus. This guide includes a full chapter-wise syllabus, examination pattern, marking scheme, recommended books, practical requirements, and preparation strategies for students aiming for excellence.

ISC Class 11 Chemistry builds the theoretical and experimental foundation for Class 12 board examinations and competitive entrance tests including JEE and NEET. The subject develops quantitative reasoning, understanding of chemical phenomena at the molecular level, and laboratory skills that are essential for careers in medicine, engineering, materials science, and research.

Quick Facts

Exam Pattern

Detailed Syllabus

Section A: Physical Chemistry

Physical Chemistry forms the quantitative backbone of the subject. Students develop skills in calculation, data interpretation, and understanding of chemical behaviour in terms of energy and entropy.

Section B: Inorganic Chemistry

Inorganic Chemistry covers the periodic table, the chemistry of representative elements, and hydrogen. Students develop pattern recognition skills and understand trends in properties across periods and groups.

Section C: Organic Chemistry

Organic Chemistry introduces students to the vast world of carbon compounds. Understanding reaction mechanisms, functional group behaviour, and nomenclature is essential for success in this section.

Chapter Overview Table

Marking Scheme

Recommended Books

Preparation Tips for ISC Class 11 Chemistry

ISC Chemistry demands a three-pronged approach: conceptual understanding for Physical Chemistry, pattern recognition for Inorganic Chemistry, and mechanism-based reasoning for Organic Chemistry. These strategies are recommended:

•       For Physical Chemistry, focus on understanding derivations and concepts rather than memorising formulas; solve 15 to 20 numericals per chapter to build calculation confidence.

•       For Inorganic Chemistry, prepare a structured table for each group of elements covering electronic configuration, physical properties, chemical reactions, and important compounds.

•       For Organic Chemistry, master IUPAC nomenclature first; then study each class of reaction by understanding the mechanism rather than memorising individual reactions.

•       Complete all NCERT exercises and examples for every chapter before attempting additional reference books; NCERT forms the direct basis of many ISC questions.

•       Maintain a chemistry practical file with accurate observations, all required calculations, and neat diagrams for every experiment performed in the laboratory.

•       Practise salt analysis (qualitative analysis) regularly in the laboratory, as this is a core component of the practical examination.

•       Solve at least three to four previous years' ISC Chemistry papers from October onward to assess preparation level and practise time management.

Frequently Asked Questions

What are the three sections of the ISC Class 11 Chemistry syllabus?

The ISC Class 11 Chemistry syllabus is divided into three sections: Section A (Physical Chemistry), Section B (Inorganic Chemistry), and Section C (Organic Chemistry). Physical Chemistry covers stoichiometry, atomic structure, bonding, thermodynamics, and solutions. Inorganic Chemistry covers the periodic table, hydrogen, and s-Block and p-Block elements. Organic Chemistry covers nomenclature, hydrocarbons, and environmental chemistry.

How many marks does the practical examination carry in ISC Class 11 Chemistry?

The practical examination in ISC Class 11 Chemistry carries 15 marks and is conducted at the end of the academic year. The internal assessment also carries 15 marks and is evaluated by the school throughout the year through practical file maintenance, viva examinations, and project work. Together, the practical and internal components account for 30 marks out of 100.

What experiments are included in the ISC Class 11 Chemistry practical syllabus?

The ISC Class 11 Chemistry practical syllabus includes volumetric analysis (titrations), qualitative analysis (salt analysis including identification of cations and anions), study of reactions, chromatography, and physical chemistry experiments such as measuring surface tension and viscosity. Students must maintain a laboratory record of all experiments with complete observations and calculations.

Is Organic Chemistry difficult in ISC Class 11?

Organic Chemistry is challenging for many students at the Class 11 level because it introduces mechanisms and a large volume of new concepts simultaneously. The most effective approach is to start with a thorough understanding of hybridisation, electronic effects, and IUPAC nomenclature. Once these foundational concepts are clear, the behaviour of different functional groups becomes much more predictable and manageable.

How should students balance Physical, Inorganic, and Organic Chemistry in their study schedule?

A balanced study schedule for ISC Chemistry should allocate roughly 40 percent of study time to Physical Chemistry (given its numerical content), 30 percent to Organic Chemistry (given its conceptual depth), and 30 percent to Inorganic Chemistry (which requires regular revision through tables and charts). Students should study all three sections throughout the year rather than attempting one section at a time.