MHT CET 2026 Chemistry question

Identify the use of Baeyer's reagent by the following.

(A)Detecting the presence of carbon carbon double bondCorrect
(B)Polymerisation
(C)Oxidation
(D)Reduction

Answer: (A)

Solution

Baeyer's reagent is cold, dilute, alkaline . It is used as a test for unsaturation: an alkene (or alkyne) decolourises the pink/purple solution and gives a brown precipitate of (alkenes are converted to vicinal diols). The test

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Question ID VK-099062