Q 1900278118.     Give the structures of A, B and C in the following reactions :
(i) `CH_3CH_2I overset(NaCN)(->) A undersettext(partial hydrolysis) overset(OH^-)(->) B overset(NaOH+Br_2)(->) C`

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

(iii) `CH_3CH_2Br overset(KCN)(->) A overset(LiAIH_4)(->) B underset(0^o) overset(HNO_2) C`

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

(v) `CH_3COOh underset(triangle) overset(NH_3)(->) A overset(NaOBr)(->) B overset(NaNO_2//HCl)(->) C`

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