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Polymers CBSE Class 12 MCQ & Practice Questions

Practice Polymers MCQs for CBSE Class 12 Chemistry with answers, explanations, chapter revision and related ChemNexa mock tests.

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Polymers Revision Guide for CBSE Class 12 Chemistry

Polymers is part of CBSE Class 12 Chemistry preparation. A strong revision plan should combine concept review with exam-style questions so that definitions, relationships, calculations and exceptions are recalled accurately.

Use the sample MCQs on this page to check understanding, then attempt the related ChemNexa tests for broader practice. When an answer is wrong, review the explanation and return to the underlying concept before attempting another set.

Important Topics

  • Core definitions and principles
  • Important equations or relationships
  • Common applications and examples
  • Frequently confused concepts
  • Exam-style multiple-choice questions
  • Error review and targeted revision

Revision Tip

Create a one-page summary of trends, structures, reactions, exceptions and key terminology for Polymers, then test recall with mixed MCQs.

What to practise in Polymers

Concept Revision

Revise definitions, principles, equations, trends and core ideas from Polymers before attempting MCQs.

Exam-style MCQs

Use chapter-focused multiple-choice practice to improve accuracy, recall and application for CBSE Class 12 Chemistry.

Performance Practice

Attempt ChemNexa tests, review results and return to weak areas for another round of targeted revision.

Top 20 Polymers MCQs with Answers

These public questions are selected from the exact Polymers chapter, screened for topic relevance and deduplicated so repeated versions of the same MCQ are not shown publicly. Use them for quick revision, then sign in to attempt the complete test experience with more questions, results and performance review.

CBSE Class 12 Chemistry · Polymers · Very Very Hard

1. A polymer is best described as:

  • A. A low-molar-mass ion
  • B. A macromolecule made of repeating monomer units
  • C. A pure metal
  • D. A simple gas
Answer: B
Explanation: Polymers are high-molar-mass macromolecules formed from repeating structural units.

CBSE Class 12 Chemistry · Polymers · Very Very Hard

2. The process of converting monomers into polymers is called:

  • A. Hydrolysis
  • B. Polymerisation
  • C. Neutralisation
  • D. Sublimation
Answer: B
Explanation: Polymerisation links monomer molecules into long-chain or network structures.

CBSE Class 12 Chemistry · Polymers · Very Very Hard

3. Which is an addition polymer?

  • A. Nylon-6,6
  • B. Terylene
  • C. Polythene
  • D. Bakelite
Answer: C
Explanation: Polythene is formed by addition polymerisation of ethene.

CBSE Class 12 Chemistry · Polymers · Very Very Hard

4. Which is a condensation polymer?

  • A. PVC
  • B. Polythene
  • C. Nylon-6,6
  • D. PTFE
Answer: C
Explanation: Nylon-6,6 forms by condensation of a diamine and a dicarboxylic acid.

CBSE Class 12 Chemistry · Polymers · Very Very Hard

5. The monomer of polythene is:

  • A. Ethane
  • B. Ethene
  • C. Ethyne
  • D. Ethanol
Answer: B
Explanation: Ethene undergoes addition polymerisation to form polythene.

CBSE Class 12 Chemistry · Polymers · Very Very Hard

6. The monomer of PVC is:

  • A. Vinyl chloride
  • B. Vinyl alcohol
  • C. Ethene
  • D. Tetrafluoroethene
Answer: A
Explanation: PVC is poly(vinyl chloride).

CBSE Class 12 Chemistry · Polymers · Very Very Hard

7. The monomer of PTFE is:

  • A. Chloroethene
  • B. Tetrafluoroethene
  • C. Styrene
  • D. Acrylonitrile
Answer: B
Explanation: PTFE is formed from tetrafluoroethene.

CBSE Class 12 Chemistry · Polymers · Very Very Hard

8. Teflon is the common name of:

  • A. PVC
  • B. PTFE
  • C. PAN
  • D. Polystyrene
Answer: B
Explanation: Polytetrafluoroethene is commonly called Teflon.

CBSE Class 12 Chemistry · Polymers · Very Very Hard

9. The monomer of polystyrene is:

  • A. Styrene
  • B. Ethene
  • C. Propene
  • D. Phenol
Answer: A
Explanation: Styrene, C₆H₅CH=CH₂, polymerises to polystyrene.

CBSE Class 12 Chemistry · Polymers · Very Very Hard

10. The monomer of PAN is:

  • A. Acrylonitrile
  • B. Acrolein
  • C. Acetylene
  • D. Aniline
Answer: A
Explanation: PAN is polyacrylonitrile.

CBSE Class 12 Chemistry · Polymers · Very Very Hard

11. Nylon-6,6 is prepared from:

  • A. Caprolactam only
  • B. Hexamethylenediamine and adipic acid
  • C. Ethylene glycol and terephthalic acid
  • D. Phenol and formaldehyde
Answer: B
Explanation: Nylon-6,6 is a polyamide formed from a diamine and adipic acid.

CBSE Class 12 Chemistry · Polymers · Very Very Hard

12. Nylon-6 is prepared from:

  • A. Caprolactam
  • B. Adipic acid
  • C. Styrene
  • D. Vinyl chloride
Answer: A
Explanation: Ring-opening polymerisation of caprolactam produces nylon-6.

CBSE Class 12 Chemistry · Polymers · Very Very Hard

13. Terylene is prepared from:

  • A. Ethylene glycol and terephthalic acid
  • B. Phenol and formaldehyde
  • C. Butadiene and styrene
  • D. Urea and formaldehyde
Answer: A
Explanation: Terylene is a polyester formed from ethylene glycol and terephthalic acid.

CBSE Class 12 Chemistry · Polymers · Very Very Hard

14. Bakelite is obtained from:

  • A. Phenol and formaldehyde
  • B. Ethene and chlorine
  • C. Styrene and butadiene
  • D. Caprolactam only
Answer: A
Explanation: Phenol and formaldehyde condense to form Bakelite.

CBSE Class 12 Chemistry · Polymers · Very Very Hard

15. Bakelite is classified as:

  • A. Thermoplastic
  • B. Thermosetting polymer
  • C. Elastomer
  • D. Natural polymer
Answer: B
Explanation: Its highly cross-linked structure prevents remoulding on heating.

CBSE Class 12 Chemistry · Polymers · Very Very Hard

16. Which is a thermoplastic polymer?

  • A. Bakelite
  • B. Melamine-formaldehyde
  • C. PVC
  • D. Urea-formaldehyde
Answer: C
Explanation: PVC softens on heating and can be remoulded.

CBSE Class 12 Chemistry · Polymers · Very Very Hard

17. Which is an elastomer?

  • A. Nylon-6,6
  • B. Buna-S
  • C. Bakelite
  • D. Terylene
Answer: B
Explanation: Buna-S is a synthetic rubber with elastic properties.

CBSE Class 12 Chemistry · Polymers · Very Very Hard

18. Buna-S is a copolymer of:

  • A. Butadiene and styrene
  • B. Butadiene and acrylonitrile
  • C. Ethene and propene
  • D. Phenol and formaldehyde
Answer: A
Explanation: Buna-S is styrene-butadiene rubber.

CBSE Class 12 Chemistry · Polymers · Very Very Hard

19. Buna-N is a copolymer of:

  • A. Butadiene and acrylonitrile
  • B. Butadiene and styrene
  • C. Isoprene and sulfur
  • D. Ethene and chlorine
Answer: A
Explanation: Buna-N is nitrile rubber made from butadiene and acrylonitrile.

CBSE Class 12 Chemistry · Polymers · Very Very Hard

20. Neoprene is formed from:

  • A. Chloroprene
  • B. Isoprene
  • C. Styrene
  • D. Acrylonitrile
Answer: A
Explanation: Polymerisation of chloroprene gives neoprene.

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Polymers Practice Tests

Polymers Frequently Asked Questions

How should I prepare Polymers for CBSE Class 12 Chemistry?

Revise the core concepts first, make a short list of important relationships or exceptions, and then solve chapter-focused MCQs while reviewing every error.

How can ChemNexa help with Polymers practice?

This page provides public sample questions and links to published ChemNexa tests so you can combine quick revision with structured practice.

What should I do after getting an MCQ wrong?

Identify whether the mistake came from a concept gap, calculation, unit, sign, wording or memory error, review that point, and then attempt a similar question again.

Continue with another chapter to build connected concepts and strengthen your overall Chemistry preparation.

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