alkyne
isoprene
n-propene
peoprene
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Rubber is an elastomer—that is, a
polymer that has the ability to
regain its original shape after being
deformed. Rubber is also tough and
resistant to weathering and
chemical attack. Elastomers can be
naturally occurring polymers, such
as natural rubber, or they can be
synthetically produced substances,
such as butyl rubber, Thiokol, or
neoprene. For a substance to be a
useful elastomer it must possess a
high molecular weight and a
flexible polymer chain......So therefore option B, is wrong the answer is option D..Neoprene

D ans is ISOPRENE which is for natural rubber,n NEOPRENE goes for synthetic rubber.

isoprene is very much correct. there is no neoprene is not go that option.

The answer is B.Rubber is a name given to a lot of different polymers that are all elastomers. Polyisoprene is what we call an elastomer, that is, it recovers its shape after being stretched or deformed.
One of the most well known natural polymers is polyisoprene

Isoprene was first isolated by thermal decomposition of natural rubber. It is most readily available industrially as a byproduct of the thermal cracking of naphtha or oil, as a side product in the production of ethylene

