1.

The monomer of PMMA is :

Answer»

`CH_2=UNDERSET(CH_3)underset(|)C-COOCH_3`
`CH_2=CHCN`
`CH_2=underset(C_2H_5)underset(|)C-COOCH_3`
`CH_2=CHCl`.

ANSWER :A


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