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JEE Main · 2026 · 23 Jan 2026 · Shift 1 · Practical and Analytical Chemistry

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Match List-I with List-II.

List-I: Functional group (detection)
(A) Unsaturation (Baeyer's test)
(B) Alcoholic group (Ceric ammonium nitrate test)
(C) Aldehyde group (Tollen's reagent)
(D) Phenolic group ( test)

List-II: Change observed during detection
(I) Red colour Appears
(II) Silver mirror appears
(III) Violet colour appears
(IV) Discharge of pink colour

Choose the correct answer from the options given below :

Answer: A → IV, B → I, C → II, D → III

Solution

Baeyer's reagent, cold dilute alkaline , is pink and is decolourised by an unsaturated compound, so the test for unsaturation shows discharge of the pink colour. The ceric ammonium nitrate test for an alcoholic group develops a red colour. Tollen's reagent is reduced by an aldehyde to metallic silver, depositing a silver mirror. The neutral ferric chloride test for a phenolic group gives a violet colour. Thus unsaturation goes with discharge of pink colour, the alcoholic group with red colour, the aldehyde group with the silver mirror, and the phenolic group with the violet colour.

JEE Main · 2026 · 23 Jan 2026 · Shift 1 · Match the columns

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