Q 1858056804.     Give the structures of A, B and C in the following reactions:

(i) `CH_3CH_2I overset(NaCN)-> A underset(Partial hydrolysis)overset(OH^(-))-> B overset(NaOH+Br_2)-> C`

(ii) `C_6H_5N_2Cl overset (CuCN)-> A overset (H_2O //H^(+))-> B underset(Delta) overset(NH_3)-> C`

(iii) `CH_3CH_2Br overset(KCN)-> A overset(LiAlH_4)-> B underset(o^o C) overset(HNO_2)-> C`

(iv) ` C_6H_5NO_2 overset(Fe//HCl)-> A underset(273 K)overset(NaNO_2+HCl)-> B overset(H_2O//H^(+)-> C`

(v) `CH_3COOH underset(Delta)(NH_3)-> A overset(NaOBr)-> B overset(NaNO_2//HCl)-> C`

(vi) `C_6H_5NO_2 overset(Fe//HCl) -> A underset(273 K) overset(HNO_2)-> B overset(C_6H_5OH)-> C`