How will you convert
(i) Benzene into aniline (ii) Benzene into N, N-dimethylaniline
`Cl-(CH_(2))_(4)- Cl` into hexane- 1,6- diamine ?

Explanation

`underset("1, 4-Dichlorobutane ")(Cl-(CH_(2))_(4)-Cl)+underset(("alc."))("2KCN")underset("-2KCl")rarrNC-(CH_(2))_(4)-CNunderset("(ii) "H_(3)O^(+))overset("(i)"LiAlH_(4)//"ether")rarrunderset("Hexane-1, 6-diamine")(H_(2)N-(CH_(2))_(6)-NH_(2)`