Which chromatography mode is used to determine the molecular mass of polymer substances?

Arrange the following polymers in the decreasing order of their intermolecular forces:
$A$. Bakelite
$B$. Teflon
$C$. Buna-$S$
$D$. Nylon-$6,6$

Which of the following polymers is used to obtain electrical and telecommunication hardware?

Which among the following polymers is used for making handles of cooker?

Given below are two statements,one is Assertion $(A)$ and the other is Reason $(R).$
Assertion $(A):$ Natural rubber is a linear polymer of isoprene called cis-polyisoprene with elastic properties.
Reason $(R):$ The cis-polyisoprene molecules consist of various chains held together by strong polar interactions with a coiled structure.
In the light of the above statements,choose the correct one from the options given below:

Which of the following is a biodegradable polymer?