Write chemical equations for the following reactions:
(i) Reaction of ethanolic `NH_(3)` with `C_(2)H_(5)Cl.`
(ii) Ammonolysis of benzyl chloride and reaction of amine so formed with two moles of `CH_(3)Cl.`

Explanation

(a) `underset("Chloroethane")(C_(2)H_(5)Cl) underset("Ethanolic")overset(NH_(3))(to) underset("Ethanamine")(C_(2)H_(5)NH_(2)) overset(C_(2)H_(5)Cl)(to) underset("N-Ethylethanamine")(C_(2)H_(5)-overset(H)overset(|)(N)-C_(2)H_(5)) overset(C_(2)H_(5)Cl)(to) underset("N,N-Diethylethanamine")(C_(2)H_(5)-underset(C_(2)H_(5))underset(|)(N)-C_(2)H_(5))`
(b) `underset("Benzyyl choloride")(C_(6)H_(5)CH_(2)Cl) overset(NH_(3))(to) underset("Benzylamine")(C_(6)H_(5)CH_(2)NH_(2)) overset(2 CH_(3)Cl)(to) underset("N,N-Dimethylphenylmethanamine")(C_(6)H_(5)-CH_(2)-underset(CH_(3))underset(|)(N)-CH_(3))`