A Compound (A) with molecular formula `C_(2)H_(3)N` on acid hydrolysis gives (B) which reacts with thionylchloride to give compound ( C). Benzene reacts with compound ( C) in presence of anhydrous `AlCl_(3)` to give compound (D). Compound (D) on reduction gives (E). Identify (A), (B), ( C), (D) and (E). Write the equations.

Explanation

Compound with molecular formula `C_(2)H_(3)N" is "CH_(3)CN(A)` acetonitrile or Methyl cyanide.
`underset("Methyl cyanide")underset((A))(CH_(3)CN)underset(H^(+))overset(H_(2)O)(to)underset("Acetic acid")underset((B))(CH_(3)COOH)`
Acid hydrolysis of nitriles give the corresponding carboxylic acid.
`underset("Acetic acid")underset((B))(CH_(3)COOH)+underset("chloride")underset("Thionyl")(SoCl_(2))tounderset("Acetyl chloride")underset((C))(CH_(3)COCl)+SO_(2)+HCl`

(A) `CH_(3)CN" "-" ""acetonitrile"`
(B) `CH_(3)COOH" "-" ""acetic acid"`
(C) `CH_(3)COCl" "-" ""acetyl chloride"`
(D) `C_(6)H_(5)COCH_(3)" "-" ""acetophenone"`
(E) Depending upon the reducing agent
(E) `C_(6)H_(5)CHOHCH_(3)to"Phenylmethyl carbinol"`
(OR)
`C_(6)H_(5)CH_(2)CH_(3)to"Ethyl Benzene"`