Polymers
Kerala Board · Class 12 · Chemistry
Complete topic list for Polymers in Kerala Board Class 12 Chemistry. Key concepts, sub-topics, and what to focus on for board exams.
Topics in Polymers
Fundamentals of Polymers
- Polymers are high molecular mass compounds formed by linking monomers through chemical bonds
- Monomers are small molecules capable of linking to form polymers (e.g., ethene → polyethene)
- Degree of polymerization (n) indicates the number of monomer units in a polymer chain
Types of Polymerization
- Addition polymerization: monomers add without loss of atoms (chain growth mechanism)
- Condensation polymerization: monomers combine with elimination of small molecules like H2O
- Addition polymerization requires unsaturated monomers (alkenes, dienes)
Classification of Polymers
- Based on source: Natural (starch, cellulose, proteins) vs Synthetic (polyethene, nylon)
- Based on structure: Linear (high density), Branched (low density), Cross-linked (network)
- Based on molecular forces: Elastomers, Fibers, Thermoplastics, Thermosetting
Important Synthetic Polymers
- Polyethene: -(CH2-CH2)n-, used in packaging, pipes, insulators
- Polypropylene: -(CH2-CH(CH3))n-, harder than polyethene, used in ropes, carpets
- PVC: -(CH2-CHCl)n-, resistant to chemicals, used in pipes, raincoats
Key Concepts
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What are the important topics in Polymers for Kerala Board Class 12 Chemistry?
Polymers covers several key topics that are frequently asked in Kerala Board Class 12 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Polymers — Kerala Board Class 12 Chemistry?
Start by understanding all key concepts. Practise previous year questions from this chapter. Revise formulas and definitions regularly. Use flashcards for quick revision before the exam.
Sources & Official References
- Kerala Board of Public Examinations — keralapareekshabhavan.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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