Which of the following is a condensation polymer?

Which of the following polymers is used for making magnetic recording tapes?

Given below are two statements: one is labelled as Assertion $A$ and the other is labelled as Reason $R$.
Assertion $A:$ Dacron is an example of polyester polymer.
Reason $R:$ Dacron is made up of ethylene glycol and terephthalic acid monomers.
In the light of the above statements,choose the most appropriate answer from the options given below.

Which of the following polymers,when blended with cotton,forms terycot?

Which of the following features is not true about low density polythene?

Which of the following polymers is used in the preparation of gaskets?