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neet CHEMISTRYHard

Complete the following reaction: [A] →HCN\xrightarrow{HCN} [B] →Δconc.H2SO4\xrightarrow[\Delta]{conc. H_2SO_4} [C]. [C] is

A
B
C
D

Step-by-Step Solution

  1. Cyclohexanone [A] reacts with HCN to form a cyanohydrin [B] (1-hydroxycyclohexanecarbonitrile). 2. Treatment of the cyanohydrin with concentrated H2SO4H_2SO_4 and heat causes dehydration of the alcohol group and hydrolysis of the nitrile group to a carboxylic acid, resulting in cyclohex-1-ene-1-carboxylic acid [C].
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