Condensation Polymerisation:- The Polymerisation reaction in which the polymer is formed by the condensation of two or more monomer is called condensation Polymerisation. In condensation polymerisation, a small molecule is formed as a by-product each time a bond is formed between two monomers. Plastics are polymers. Be the first to write the explanation for this question by commenting below. WBJEE 2018: A condensation polymer among the following is (A) Dacron (B) PVC (C) Polystyrene (D) Teflon. 3. synthesis polymers:- buna-s, buna-r, nylon, polythene, polyester. Notice how every other carbon must have a chlorine attached. A polymer is a substance made of many repeating units. Characteristics of Condensation Polymers This polymer can absorb 800 times it own weight of distilled water, but only 300 times its weight of tap water. Check Answer and Solution for above question Example of thermoplastic: PVC & Nylon. Question 2. Synthetic polymers: Polymers prepared in laboratory. Chemical reaction - Chemical reaction - Polymerization reactions: Polymers are high-molecular-weight compounds, fashioned by the aggregation of many smaller molecules called monomers. Examples – Cellulose, starch, etc. Download a PDF of this page Science of Plastics Definition Plastics are a group of materials, either synthetic or naturally occurring, that may be shaped when soft and then hardened to retain the given shape. Click to know more. polymers have the same empirical formula as their monomers. Therefore, their overall weightage in JEE Main is 2-3%. Part 7: The Mechanism of Condensation Polymerization You know that monomers that are joined by condensation polymerization have two functional groups. Options (a) Nylon, buna-S (b) Teflon, buna-N (c) Nylon 6,6, dacron (d) Neoprene, buna-S. Example of polymers which undergoes additional polymerisation. This is almost everything that students need to know about addition and condensation polymers. Some polymers are made via condensation polymerisation. D. condensation polymer. (Delhi, All India 2009) Answer: […] 11. Polyamides, polyesters, phenol-formaldehyde polymers and melamine-formaldehyde polymers are all important condensation polymers. Ans. Ans. Important Questions for Class 12 Chemistry Chapter 15 Polymers Class 12 Important Questions Polymers Class 12 Important Questions Very Short Answer Type Question 1. Polymerization by free radicals: mutation of cells in carcinogens; Teflon; Bakelite; Polyvinyl chloride (PVC) Examples of condensation polymerization. Write some examples of condensation polymers. Example of thermosetting polymer. One example of a condensation polymer is A polyethylene B nylon C Teflon D from CHM 102 at American University of Sharjah Condensation polymers The condensation polymers are formed by repeated condensation reaction between two different bi-functional or tri-functional monomeric units. Examples: PVC, polystyrene, Teflon, polyethylene, etc. B. monopolymer. Other Addition Polymers. Addition polymer: Addition polymers are those formed when molecules of an alkene monomer add (i.e. This condensation can form what are known as multimers or polymers. Monomer Polymer Description Ethene Polyethene (PE) • Low density polyethene (LDPE) • Condition : 200oC and 1200 atm under oxygen. Which is correct example of condensation polymer . Semi synthetic polymers: Polymers derived from naturally occurring polymers by carrying out chemical modifications. Condensation polymerisation produces a distinct functionalized species and is independent of each other. Ans. (a) Teflon (b) PVC (c) nylon (d) polyethylene . example:- proteins, cellulose, starch, rubber. (i) addition polymers :Polyvinyl chloride, Polythene. Condensation; Mostly it occurs when there is loss of water or loss of some molecule. Therefore it is also called step growth polymerisation. Examples of condensation polymers are Nylon-6, 6, Dacron, Nylon 6 etc. The word polymer comes from two Greek words: poly, meaning many, and meros, meaning parts or Large electronegativity difference of 'C' and F makes C-F bond highly polar. (ii) condensation polymers: Terylene , Bakelite. C. homopolymer. natural polymers:- the definition of a natural polymer is a polymer that results from only raw materials that are found in nature. Teflon and Neoprene are the example of: This question has multiple correct options. Some examples of common condensation polymers are polyacetals, proteins, and polyamides. ), are called Formulas for these will be displayed below by clicking on the diagram. Bakelite & Polyurethane. Chemistry MCQs for Class 12 Chapter Wise with Answers PDF Download was Prepared Based on Latest Exam Pattern. Explanation: No explanation available. MEDIUM. Start studying Chapter 10 Chem Exam 3. A polymer is a large molecule that is made up of repeating subunits connected to each other by chemical bonds.Do you need some examples of polymers? Teflon is homopolymer of monomeric units of tetra-fluoro-ethene. Learn vocabulary, terms, and more with flashcards, games, and other study tools. A. copolymer. What does the part ‘6, 6’ mean in the name nylon-6, 6? • Contain branched chains which decrease the density (less pack). 1 In the case of a condensation reaction, two monomers combine with the loss of a small molecule, usually an alcohol, a water or an acid molecule, whereas an addition reaction involves only the rearrangement of the electrons of a double bond to form a single bond with another molecule. When a condensation reaction involves polymerization, we call it condensation polimarization. How is Nylon – 6, 6 different from Nylon -6? Examples of addition polymerization. Step-growth polymerizations can be divided into two lasses: condensation and addition polymerization. The process can be represented as follows: + + + Branched + + + Linear 2. -It requires two like molecules. These chapters cannot be skipped. The plastics that have so changed society and the natural and synthetic fibres used in clothing are polymers. Because it is a polymer that contains the ester functional group it it's main chain. Here is a list of materials that are natural and synthetic polymers, plus some examples of materials that are not polymers at all. Because the ionic strength of urine is equivalent to an 0.1 M NaCl solution, this superabsorbant polymer, which can be found in disposable diapers, can absorb up to 60 times its weight in urine. If in the polymerization process only a single type of monomeric unit is used, then the formed polymer is called homopolymer. Commonly used condensation polymers:-Nylon -PET (polyethene terephthalate) Why is PET considered to be a polyester? Due to symmetry of F 2 C = CF 2 and strength of C-F bond , branching does not take place and a linear chain teflon is always formed. Students can solve NCERT Class 12 Chemistry Polymers MCQs Pdf with Answers to know their preparation level. The reaction is shown in the graphic on the left. Correct Answer: Nylon 6,6, dacron. Give an example of a biodegradable aliphatic polyester. Condensation polymers are the result of repeated condensation reactions between two different bi-functional monomers. The best example is polymerization of ethylene. (Delhi, All India 2009) Answer: Buna-S, Buna-N. Condensation Polymers Condensation Polymerization - Condensation polymerization is a form of a step-growth polymerization where smaller molecules or monomers react with each other to form larger structural units (usually polymers). The two major types of polymers are the addition polymers and the condensation polymers. 3.What is a biodegradable polymer ? double bond containing molecule) to one another. 6. Free PDF Download of CBSE Chemistry Multiple Choice Questions for Class 12 with Answers Chapter 15 Polymers. Examples – Teflon, Nylon 6,6 , Synthetic rubber (Buna – S) etc. For example, polythene, Teflon and polyacrylonitrile are homopolymers. In these polymerisation reactions, the elimination of small molecules such as water, alcohol, hydrogen chloride, etc. 2.Classify the following as addition and condensation polymers: Terylene, Bakelite, Polyvinyl chloride, Polythene. The polymers obtained by addition polymerization are called addition polymers. Polyamides are polymers … Example: Teflon, polyethylene, PVC Answer. 10. Polymers and Biomolecules are very important chapters in JEE Main Chemistry.Generally, 1 question is asked from each chapter, Polymers and Biomolecules, which bears about 8 marks in total. 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