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GyanMul Prep · NEB +2 · Science · Grade 12

Chemistry (Science, Grade 12)

Everything on these tabs is Chemistry (Science, Grade 12) only, within NEB +2 Science · Grade 12.

Chapter 20 of 21 · Chemistry (Science, Grade 12)

Polymers

8 topics
Board exam — Applied chemistry, 8 marks across 4 chapters

Small molecules joined into long ones: addition against condensation, the named plastics and fibres each route gives, rubber and its vulcanisation, and why biodegradability has become the question.

Topics

What the syllabus defines for this chapter

1Polymers and monomers; degree of polymerisation
2Classification: natural and synthetic; homopolymer and copolymer
3Addition polymerisation and its mechanism
4Condensation polymerisation and its mechanism
5Addition polymers: polythene, polyvinyl chloride, polystyrene and teflon
6Condensation polymers: nylon 6,6, terylene and bakelite
7Natural and synthetic rubber; vulcanisation
8Biodegradable polymers and the problem of plastic waste

GyanMul Prep · NEB +2 · Science · Grade 12

Chemistry (Science, Grade 12)

Everything on these tabs is Chemistry (Science, Grade 12) only, within NEB +2 Science · Grade 12.

Science · Grade 12 subjects

Chapter 20 of 21 · Chemistry (Science, Grade 12)

Polymers

8 topics
Board exam — Applied chemistry, 8 marks across 4 chapters

Small molecules joined into long ones: addition against condensation, the named plastics and fibres each route gives, rubber and its vulcanisation, and why biodegradability has become the question.

Topics

What the syllabus defines for this chapter

1Polymers and monomers; degree of polymerisation
2Classification: natural and synthetic; homopolymer and copolymer
3Addition polymerisation and its mechanism
4Condensation polymerisation and its mechanism
5Addition polymers: polythene, polyvinyl chloride, polystyrene and teflon
6Condensation polymers: nylon 6,6, terylene and bakelite
7Natural and synthetic rubber; vulcanisation
8Biodegradable polymers and the problem of plastic waste