A ketone (A) which undergoes reduction to give (B). (B) on heating with sulphuric acid gives mixture of 1-butene and 2-butene . Identify(A) and (B). On heating with sulphuric acid gives mixture of 1-butene and -butene . Identify (A) and (B).

Options

A. Butanone, 2-propanol
B. Butanone , 2-butanol
C. Propanone,2-propanol
D. Propanone, 2-butanol

Answer

B

Explanation

(a) `-overset(|)C=O underset(Delta) overset("reduction")to -CH overset(|)-OH` Therefore B is a `2^(@) `alcohol .
(b) B on hydration gives but-2-ene and but-1-ene. Therefore B is butan-2-ol.
(c) Therefore A is butanone.