Read and download free pdf of CBSE Class 12 Chemistry Polymers Questions. Get printable school Assignments for Class 12 Chemistry. Class 12 students should practise questions and answers given here for Unit 15 Polymers Chemistry in Class 12 which will help them to strengthen their understanding of all important topics. Students should also download free pdf of Printable Worksheets for Class 12 Chemistry prepared as per the latest books and syllabus issued by NCERT, CBSE, KVS and do problems daily to score better marks in tests and examinations
Assignment for Class 12 Chemistry Unit 15 Polymers
Class 12 Chemistry students should refer to the following printable assignment in Pdf for Unit 15 Polymers in Class 12. This test paper with questions and answers for Class 12 Chemistry will be very useful for exams and help you to score good marks
Unit 15 Polymers Class 12 Chemistry Assignment
Points to Remember
1. Polymers are defined as high molecular mass macromolecules which consist of repeating structural units derived from the appropriate monomers.
2. In presence of an organic peroxide initiator, the alkenes and their derivatives undergo addition polymerisation or chain growth polymerisationthrough a free radical mechanism. Polythene, teflon, orlon etc. are formed by addition polymerisation of an appropriate alkene or its derivative.
3. Condensation polymerisation reactions are shown by the addition of bi– or poly functional monomers containing –NH2, –OH and –COOH groups. This type of polymerisation proceeds through the elimination of certain simple molecules such as H2O, NH3 etc.
4. Formaldehyde reacts with phenol and melamine to form the corresponding condensation polymer products. The condensation polymerisation progresses through step by step and is called also step growth polymerisation.
5. Nylon, bakelite and dacron are some of the important examples of condensation polymers.
6. A condensation of two different unsaturated monomers exhibits copolymerisation. A copolymer like Buna-S contains multiple units of 1, 3- Butadiene and styrene.
7. Natural rubber is cis-1, 4-polyisoprene. It can be made more tough by the process of vulcanization with sulphur.
8. Synthetic rubbers like Buna-N are usually obtained by copolymerisation of alkene and 1, 3-Butadiene derivatives.
9. In view of potential environmental hazards of synthetic polymeric wastes, certain biodegradable polymers such as PHBV and Nylon-2-Nylon-6 are developed as alternatives.
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CBSE Class 12 Chemistry Unit 15 Polymers Assignment
We hope you liked the above assignment for Unit 15 Polymers which has been designed as per the latest syllabus for Class 12 Chemistry released by CBSE. Students of Class 12 should download and practice the above Assignments for Class 12 Chemistry regularly. We have provided all types of questions like MCQs, short answer questions, objective questions and long answer questions in the Class 12 Chemistry practice sheet in Pdf. All questions have been designed for Chemistry by looking into the pattern of problems asked in previous year examinations.
Assignment for Chemistry CBSE Class 12 Unit 15 Polymers
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Unit 15 Polymers Assignment Chemistry CBSE Class 12
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Unit 15 Polymers Assignment CBSE Class 12 Chemistry
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CBSE Chemistry Class 12 Unit 15 Polymers Assignment
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