Buna-`N` synthetic rubber is a copolymer of:

Options

A. `H_(2)C=CH-overset(Cl)overset(|)(C)=CH_(2)` and `H_(2)C=CH-CH=CH_(2)`
B. `H_(2)C=CH-CH=CH_(2)` and `H_(5)C_(6)-CH=CH_(2)`
C. `H_(2)C=CH-CN` and `H_(2)C=CH-CH=CH_(2)`
D. `H_(2)C=CH-CN` and `H_(2)C=CH-underset(CH_(3))underset(|)(C)=CH_(2)`

Answer

C

Explanation

Buna-N is copolymer of `CH_(2)=CH-CN` (acrylo nitrile) and `CH_(2)=CH-CH=CH_(2)` (Butadiene).