Regarding aqueous solution of Potassium Cyanide, correct statements areA) Solution is alkaline in nature B) It undergoes anionic hydrolysis C) It remains colourless by the addition of Phenolpthalein D) Its hydrolysis constant depends on Ka of weak acid

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A, B, C only

A, B, D only

A, B, C, D

A, C only

answer is B.

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Detailed Solution

CN-+H2O ⇌HCN+OH-; Undergoes anionic hydrolysis and the solution is alkaline; Thus it gives pink colour with Phenolpthalein; Kh=KwKa

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