1.

The monomer required for the preparation of buna-N is

Answer»

`CH_2=CH-CH_2-CH_3 and CH_2=CH-CN`
`CH_2=CH=CH=CH_2 and CH_2=CH-CN`
`CH_2=C=CH-CH_3 and CH_2=CH-CN`
`CH_2=CH-CH=CH_2 and CH_3-CH_2-CN`

ANSWER :B


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