The final product of the following sequence of reactinon is
`(CH_(2))=(CH_(2))overset(Br_(2)) underset(C Cl_(4)) to A overset(KCN) to B overset(H^(+)//H_(2)O)toC`

Options

A. `underset(CH_(2)-COOH) overset(CH_(2)-COOH)|`
B. `underset(CH_(2)-Br) overset(CH_(2)-Br)|`
C. `underset(CH_(2)-CN) overset(CH_(2)-COOH)|`
D. `underset(CH_(2)-CN) overset(CH_(2)-CN)|`

Answer

A

Explanation

`overset(CH_(2)) underset(CH_(2))(||) overset(Br) underset(C Cl)to overset(CH_(2)Br) underset((A)) underset(CH_(2)Br)|overset(KCN) underset(-2KBr)to overset(CH_(2)CN) underset(CH_(2)CN)|overset(H^(+)) underset(H_(2)O)to overset(CH_(2)COOH) underset("Succinic acid")|`