JEE Main Chemistry question

Which reagent is most suitable for the synthesis of HOCH₂CH₂CH₂COOH from HOCH₂CH₂CH₂Br?

(A)Grignard reagent
(B)KCN/H₃O⁺Correct
(C)HgSO₄/H₂SO₄
(D)PCl₅

Answer: (B)

Solution

Direct Grignard formation would be incompatible with the free hydroxyl group present in the same molecule (the acidic O–H would simply quench/destroy the Grignard reagent). Instead, SN2

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Question ID VK-149435