Good Morning

08:25 am

NCERT Solutions for Class 12 Chemistry Chemistry Ii Chapter 15 Polymers

NCERT Solution For Class 12 Chemistry Chemistry Ii

Polymers Here is the CBSE Chemistry Chapter 15 for Class 12 students. Summary and detailed explanation of the lesson, including the definitions of difficult words. All of the exercises and questions and answers from the lesson's back end have been completed. NCERT Solutions for Class 12 Chemistry Polymers Chapter 15 NCERT Solutions for Class 12 Chemistry Polymers Chapter 15 The following is a summary in Hindi and English for the academic year 2024-25. You can save these solutions to your computer or use the Class 12 Chemistry.

Question 1

NCERT Solutions for Class 12 Chemistry Chemistry Ii Chapter 15 Polymers

NCERT Solution For Class 12 Chemistry Chemistry Ii

What are polymers?

How are polymers classified on the basis of structure?

Write the names of monomers of the following polymers:

Write the names of monomers of the following polymers:

Write the names of monomers of the following polymers:

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

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

Arrange the following polymers in increasing order of their intermolecular forces.Nylon 6, 6, Buna-S, Polythene.

Arrange the following polymers in increasing order of their intermolecular forces.Nylon-6, Neoprene, Polyvinyl chloride.

Explain the terms polymer and monomer.

How do you explain the functionality of a monomer?

Define the term polymerization.

Is (NH—CHR—CO)n, a homopolymer or copolymer?

What is the basic unit of polymer called?

a homopolymer or a copolymer?

What is an addition polymer?

What is condensation polymer?

Give one example each of (i) Addition polymer (ii) Condensation polymer.

Give two examples of chain growth polymers.

Give two examples of step growth polymers.

What is co-polymer?

Give one example of a natural elastomer.

Write the name and structure of the monomer of natural rubber.

State two properties of thermosetting polymers.

State two properties of thermoplastic polymers.

Give two examples of thermoplastic polymers.

Give two examples of thermosetting polymers.

Arrange the following polymers in the increasing order of their intermolecular forces: Nylon-66, Buna-S, polythene.

Out of linear polymer and branched chain polymer which higher density?

What is the monomer unit in nylon-6?

What is the common name of the polymer obtained by the polymerization of caprolactum?

Nylon -66 is an example of which type of polymer?

Vulcanised rubber is an example of which type of polymer depending upon the type of molecular forces?

Write the IUPAC name of monomer of natural rubber.

Name the monomers of terylene.

Give an example of polyester polymer. Name its monomers.

Give names of two polyamide polymers. Why are they so called?

Name the polymer whose monomers are phthalic acid and ethylene glycol.

Name the monomer of polyvinyl chloride (PVC)?

Name a plastic which is used for making unbreakable plastic crockery.

Give the chemical name of teflon.

Write the name and structure of one of the common initiators used in free radical addition polymerization.

Discuss the main purpose of vulcanization of rubber.

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

Write the names and structures of monomers of bakelite. To which class, thermoplastic and thermosetting does bakelite belong?

PMMA stands for which polymer?

Write the name of the monomer of Neoprene rubber.

What is the monomer unit of acrilan or orlon?

BF3 and water act as an initiator for which type of addition polymerization.

Write the names of any two reagents which initiate anionic addition polymerization of alkenes.

Why does styrene undergo anionic polymerization easily?

Why is cationic polymerization preferred in case of vinylic monomers containing electron donating groups?

Write the monomers used for the preparation of decron.

Name the monomers for preparing Buna- S

Give three examples of synthetic rubber.

What are the monomer units of baketlite?

Why neoprene is non-inflammable?

Why are neoprene belts used in coal mines?

What is the difference between the two notations: nylon-6 and nylon-6, 6?

Name two biopolymers ?

Which polymer is used for making a non-stick coating on pans?

Write the starting materials for the synthesis of nylon-66?

To which class of polymers does orlon belong?

Write the monomers of melamine polymer.

What for the following abbreviations stand; (i) PVC (ii) PTFE (iii) PMMA.

Describe the formation of melamine formaldehyde ?

What is the monomeric unit of teflon?

An unknown polymer has the structure:Write the structure of its monomers.

What kind of polymerization is shown by the following:(a) CH2 = CH = CH3(b) C6H5OH and NH2CONH2

What is viscose rayon?

Define copolymerisation? Give one example.

What are polyamides?

A polymer is formed by the action of terephthalic acid.Write its structure.

Name one synthetic polymer containing - CN group. Give its formula.

What structural changes are produced during vulcanization of rubber?

Mention two uses of Nylon-6, 6.

Which is better material for making PVC pipes a thermosetting plastic or a thermoplastic?

Give two examples of polymers that belong to the class of formaldehyde resins.

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

Arrange the following polymers in increasing order of their intermolecular forces.
Nylon 6, 6, Buna-S, Polythene.

Arrange the following polymers in increasing order of their intermolecular forces.
Nylon-6, Neoprene, Polyvinyl chloride.

Is (NH—CHR—CO)_n, a homopolymer or copolymer?

$negative CH subscript 2 space minus space CH left parenthesis straight C subscript 6 straight H subscript 5 right parenthesis space plus subscript straight n$ a homopolymer or a copolymer?

BF₃ and water act as an initiator for which type of addition polymerization.

What for the following abbreviations stand;
(i) PVC
(ii) PTFE
(iii) PMMA.

An unknown polymer has the structure:

Write the structure of its monomers.

What kind of polymerization is shown by the following:
(a) CH₂ = CH = CH₃(b) C₆H₅OH and NH₂CONH₂

A polymer is formed by the action of terephthalic acid.

Write its structure.

Classify the following polymers as chain growth and step growth polymers:
(i) Buna-S
(ii) Nylon-6,6
(iii) Terylene
(iv) PVC

Name the methods used to determine the weight average molecular masses: why only these methods are used for determing M_w?

Write the monomers used for getting the following polymers.
(i) Polyvinyl chloride (ii) Teflon (iii) Bakelite.

Write the names and structures of the monomers of the following polymers:
(1) Buna-S (2) Buna-N (3) Dacron (4)Neoprene.

How does the presence of CCl₄ influence the course of vinyl free radical polymerization ? Explain with an example.

Give the monomers and uses of each of the following addition polymers:
(a) Polyethylene

(b) Polypropylene

(c) Polystyrene.

Explain with suitable examples:
(i) Natural polymers
(ii) Synthetic polymers.