1.

Natural rubber is polymer is

Answer»

`CH_2=CH-Cl`
`CIS CH_2=OVERSET(CH_3)overset(|)C-CH=CH_2`
`"TRANS" CH_2=overset(CH_3)overset(|)C-CH=CH_2`
`"cis" CH_2=overset(CH_3)overset(|)C-overset(CH_3)overset(|)C=CH_2`

ANSWER :B


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