NSEJS Chemical Substances Syllabus: Topics and Preparation Tips

The NSEJS Chemical Substances Syllabus covers the chemistry topics included under the Chemical Substances – Nature and Behaviour section of the official NSEJS Syllabus. It focuses on understanding chemical reactions, acids, bases and salts, metals and non-metals, carbon compounds, and the periodic classification of elements. The 

NSEJS Chemical Substances syllabus is designed to assess conceptual understanding of fundamental chemistry topics at the secondary school level.

NSEJS Chemical Substances Syllabus 2026

The NSEJS chemical substances syllabus 2026 includes the following topics prescribed in the official syllabus.

NSEJS Chemistry Syllabus PDF

Students can refer to the official NSEJS Chemistry syllabus PDF issued by the Indian Association of Physics Teachers (IAPT) to study the prescribed topics. The Chemical Substances – Nature and Behaviour section is part of the official NSEJS syllabus and should be used as the primary reference for preparation.

Chemical Substances - Nature and Behaviour Topics

The NSEJS chemical substances topics included in the official syllabus are:

1. Chemical Reactions

This section covers:

• Chemical equations

• Balanced chemical equations

• Implications of balanced chemical equations

• Combination reactions

• Decomposition reactions

• Displacement reactions

• Double displacement reactions

• Precipitation reactions

• Neutralization reactions

• Oxidation and reduction reactions

2. Acids, Bases Salts Syllabus

The NSEJS acids, bases, and salts syllabus includes:

• Definitions based on H⁺ and OH⁻ ions

• General properties

• Examples and uses

• pH scale

• Importance of pH in everyday life

• Preparation and uses of:

• Sodium hydroxide

• Bleaching powder

• Baking soda

• Washing soda

• Plaster of Paris

3. Metals and Non-metals

Topics covered include:

• Properties of metals and non-metals

• Reactivity series

• Formation and properties of ionic compounds

• Basic metallurgical processes

• Corrosion and its prevention

4. Carbon Compounds

Students should study:

• Covalent bonding in carbon compounds

• Versatile nature of carbon

• Homologous series

• Nomenclature of carbon compounds containing:

• Halogens

• Alcohols

• Ketones

• Aldehydes

• Alkanes

• Alkynes

• Difference between saturated and unsaturated hydrocarbons

• Chemical properties:

• Combustion

• Oxidation

• Addition reactions

• Substitution reactions

• Properties and uses of ethanol and ethanoic acid

• Soaps and detergents

5. Periodic Classification of Elements

The syllabus includes:

• Need for classification

• Dobereiner's Triads

• Newland's Law of Octaves

• Mendeleev's Periodic Table

• Modern Periodic Table

• Gradation in properties

• Valency

• Atomic number

• Metallic and non-metallic properties

Preparation Tips for the NSEJS Chemical Substances Syllabus

The Chemical Substances section tests your understanding of core chemistry concepts and their practical applications. Regular revision of fundamental topics and consistent practice of conceptual questions can help improve accuracy and confidence in the NSEJS examination.

To prepare effectively for this section:

• Learn the different types of chemical reactions and balanced chemical equations.

• Understand the properties and applications of acids, bases and salts.

• Study the reactivity series and characteristics of metals and non-metals.

• Practise the nomenclature and reactions of carbon compounds.

• Revise the development and features of the periodic classification of elements.