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JEE Mains | PYQ

Which one of the following is NOT a copolymer?

Melamine polymer is formed by the condensation of:

The Novolac polymer has mass of \( 963 \, \text{g} \). The number of monomer units present in it are ___________.

In alanylglycylleucylalanylvaline, the number of peptide linkages is __________.

The polymer, which can be stretched and retains its original status on releasing the force is:

Vulcanization of rubber is carried out by heating a mixture of

A polysaccharide 'X' on boiling with dil \( \mathrm{H_2SO_4} \) at \( 393 \, \text{K} \) under \( 2\text{-}3 \, \text{atm} \) pressure yields 'Y'. 'Y' on treatment with bromine water gives gluconic acid. 'X' contains \( \beta \)-glycosidic linkages only. Compound 'X' is:

Which of the following sets are correct regarding polymer?

(a) Copolymer: Buna-S     (b) Condensation polymer: Nylon-\( 6, 6 \)

(c) Fibres: Nylon-\( 6, 6 \)     (d) Thermosetting polymer: Terylene

(e) Homopolymer: Buna-N

Match List I with List II.

Choose the correct answer from the options given below:

Given below are two statements: one is labelled as Assertion A and the other 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 option given below:

Which of the following is an example of polyester?