Some Basic Concepts in Chemistry PYQs — JEE Main Previous Year Questions with Solutions

Most-tested concepts

What JEE Main asks from Some Basic Concepts in Chemistry

Across 25 years of JEE Main papers, examiners return to these concepts most often — practise the PYQs on each:

Mole conceptChemical equations and stoichiometryDalton’s theoryDefects and StoichiometryMole concept and stoichiometryStoichiometry

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FAQ

Frequently asked questions

On average about 0.5 questions (2.1% of the Chemistry paper), based on JEEnius's analysis of 25 years of JEE Main papers. It ranks #19 of 19 Chemistry chapters by weightage.

The most frequently tested concepts are: Mole concept, Chemical equations and stoichiometry, Dalton’s theory, Defects and Stoichiometry, Mole concept and stoichiometry, Stoichiometry. JEEnius lets you practise JEE Main PYQs on each of these with step-by-step solutions.

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