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NEET levelSingle correct optionDifficulty 1 of 3si174

Bromoethane is heated with alcoholic KCN to give A. A is refluxed with dilute HCl to give B. B is

  1. Aethanoic acid
  2. Bpropanamide
  3. Cbutanoic acid
  4. Dpropanoic acid

Answer: D

adds one carbon (propanenitrile, A). Complete acid hydrolysis of the nitrile gives , propanoic acid (B). Propanamide is only an intermediate.
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