Natural and Synthetic Rubbers

The material used by dentists in root canals is

Natural rubber is a polymer of

Which of the following structures represent repeating units of neoprene polymer?

Which of the following is the monomer of natural rubber?

The monomer units of polymer Buna-N.

Copolymerization of $1,3$ $-\mathrm{butadiene}$ and acrylonitrile gives

In vulcanized rubber, the $\text{cis}-1$, $4-\text{polyisoprene}$ chains are attached through _____.

The following is used for making natural rubber hard:

Treatment of rubber with sulphur is called ______.

The process of vulcanization makes rubber ______.

Assertion:- Natural Rubber has elastic property.
Reason:- It has linear structure.

Assertion:- Natural rubber is cis-$1,4$-polyisoprene.

Reason:- Isoprene is $2$ -methyl-$1,3$-butadiene.

Which of the following are monomers of natural rubber and neoprene respectively:

Monomers of natural rubber and neoprene are respectively:

Isoprene is:

The monomers of buna$-\mathrm{S}-$rubber are:

Neoprene, an important synthetic rubber, is formed by:

The polymerisation reaction shown below

would produce:

Structures of some common polymers are given. Which one is not correctly presented?

The monomer used for preparing neoprene rubber is