95 JEE Main Hydrogen PYQs (2003–2026) with verified answers and step-by-step solutions.
This page collects every JEE Main Hydrogen previous-year question from Chemistry, 2003–2026. Each links to a full solution with a verified answer key. Click any year above to narrow the list, or open a question to study its step-by-step working and then practice it on PrepSharp's CBT player.
The mass of iron converted into Fe₃O₄ by the action of 18 g of steam is : (Given : Molar mass of H, O and Fe are 1, 16…
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : Iso…
An indicator ‘ X ’ is used for studying the effect of variation in concentration of iodide on the rate of r…
Match List I with List II List I Type of Hydride List II Example A Electron deficient hydride I MgH 2 B Electron rich h…
' 25 volume' hydrogen peroxide means
Given below are two reactions, involved in the commercial production of dihydrogen H 2 . The two reactions are carried…
H 2 O 2 acts as a reducing agent in
Given below are two statements: Statement I: Permutit process is more efficient compared to the synthetic resin method…
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R . Assertion A : Ph…
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Loss…
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