Ncert Exercises & Solutions

Select the correct option based on statements below:

Assertion (A):	For making rubber synthetically, isoprene molecules are polymerized.
Reason (R):	Neoprene (a polymer of chloroprene) is a synthetic rubber.

1.	Both (A) and (R) are true but (R) is not the correct explanation of (A).
2.	Both (A) and (R) are true and (R) is the correct explanation of (A).
3.	(A) is false but (R) is true.
4.	(A) is true but (R) is false.

HINT: Natural rubber is a linear polymer of isoprene (2-methyl-1,3-butadiene).

Explanation: Neoprene or polychloroprene is formed by the free radical polymerization of chloroprene.

Neoprene is an example of synthetic rubber.

Hence, Assertion is the wrong statement and reason is the correct statement