Polymers NCERT Solutions Chemistry Questions Class 12 CBSE

Question 1

What are polymers?

Question 2

How are polymers classified on the basis of structure?

NCERT Question Solutions

Question 3

Classify the following as addition and condensation polymers: Terylene, Bakelite, Polyvinyl chloride, Polythene.

Question 4

Classify the following as addition and condensation polymers: Terylene, Bakelite, Polyvinyl chloride, Polythene.

Question 5

Arrange the following polymers in increasing order of their intermolecular forces.

(i) Nylon 6, 6, Buna-S, Polythene.

(ii) Nylon 6, Neoprene, Polyvinyl chloride.

Question 6

Explain the terms polymer and monomer.

Question 7

Define thermoplastics and thermosetting polymers with two examples of each.

Question 8

What are natural and synthetic polymers? Give two examples of each type.

Question 9

How do you explain the functionality of a monomer?

Question 10

Define the term polymerisation.

Question 11

Is , a homopolymer or copolymer?

Question 12

In which classes, the polymers are classified on the basis of molecular forces?

Question 13

Write the names of monomers of the following polymers:

Question 14

How is dacron obtained from ethylene glycol and terephthalic acid?

Question 15

Write the free radical mechanism for the polymerisation of ethene.

Question 16

Write the monomers used for getting the following polymers.

(i) Polyvinyl chloride (ii) Teflon (iii) Bakelite

Question 17

Write the name and structure of one of the common initiators used in free

radical addition polymerisation.

Question 18

What are the monomeric repeating units of Nylon-6 and Nylon-6, 6?

Question 19

Write the names and structures of the monomers of the following polymers:

(i) Buna-S (ii) Buna-N

(iii) Dacron (iv) Neoprene

Question 20

Identify the monomer in the following polymeric structures.

(i)

(ii)

Question 21

How can you differentiate between addition and condensation polymerisation?

Question 22

Distinguish between the terms homopolymer and copolymer and give an example of each.

Question 23

Explain the difference between Buna-N and Buna-S.

Question 24

What is a biodegradable polymer? Give an example of a biodegradable aliphatic polyester.

Question 25

How does the presence of double bonds in rubber molecules influence their

structure and reactivity?

Question 26

Discuss the main purpose of vulcanisation of rubber.

Question 27

Write the names and structures of the monomers of the following polymers:

(i) Buna-S (ii) Buna-N

(iii) Dacron (iv) Neoprene

Question 28

Explain the term copolymerisation and give two examples.

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