169 JEE Main Aldehydes and Ketones PYQs (2002–2026) with verified answers and step-by-step solutions.
This page collects every JEE Main Aldehydes and Ketones previous-year question from Chemistry, 2002–2026. 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.
Given below are the four isomeric compounds (P, Q, R, S) Identify correct statements from below. A. Q, R and S will giv…
Given below are two statements: Statement I : Cross aldol condensation between two different aldehydes will always prod…
' x ' is the product which is obtained from propanenitrile and stannous chloride in the presence of hydrochloric acid f…
An organic compound "x" where molar ratio of C, O and H are equal, on treatment with 50\% KOH under reflux followed by…
Iodoform test can differentiate between A. Methanol and Ethanol B. CH₃ COOH and CH₃ CH₂ COOH C. Cyclohexene and cyclohe…
Consider the following reaction. The major product (P) formed is:
An organic compound " P " of molecular formula C₆ H₁₂ O₃ gives positive Iodoform test but negative Tollen's test. When…
'x' is the product which is obtained by the hydrolysis of prop-1-yne in the presence of mercuric sulphate under dilute…
Match the LIST-I with LIST-II array|c|l|c|l| & List-I (Reagents) & & List-II (Name of reaction \ & & & involving carbon…
Match List - I with List - II. arrayl List - I & List - II \ Reagents & Reaction Name (Involving aldehydes) \ A. H₂, Pd…
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