(a) How will you convert:
(i) Aniline into Fluorobenzene.
(ii) Benzamide into Benzylamine.
(iii) Ethanamine to N,N-Diethylethanamine.
(b) Write the structures of A and B in the following:
(i) `CH_(3)CH_(2)CN underset("Partial hydrolysis")overset(OH^(-))to A overset(NaOH + Br_(2))to B`
(ii) ` CH_(3)CH_(2)Br underset((ii)LiAlH_(4))overset((i)KCN) to A underset(O^(0)C)overset(NHO_(2))to B`

Explanation

(a)

(iii) `CH_(3)CH_(2)NH_(2)overset(C_(2)H_(5)Cl)toC_(2)H_(5)-overset(H)overset(|)N-C_(2)H_(5)overset(C_(2)H_(5)Cl)toC_(2)H_(5)-underset(C_(2)H_(5))underset(|)N-C_(2)H_(5)`
(b)
(i) `A:CH_(3)CH_(2)CONH_(2)`
`B:CH_(3)CH_(2)NH_(2)`
(ii) `A:CH_(3)CH_(2)CH_(2)NH_(2)`
`B:CH_(3)CH_(2)CH_(2)OH`