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