Simple, reactive molecules known as monomers, combine with each other in large numbers through covalent bonds to give rise to polymers. simple and reactive molecules from which the polymers are prepared either by addition or condensation polymerisation. Natural polymers: The polymers which occur in nature mostly in plants and animals are called natural polymers. Based on Molecular forces, it is classified into Answer: Explaination: (b) and (c). NCERT Exemplar Class 12 Chemistry Chapter 15 Polymers. Question 1. big size molecules, they are also called macromolecules Monomers: The simple molecules which combine to form polymers by forming single or multiple bonds are […] Examples – Nylon 6, 6, Nylon 6. Polymers have a high molecular mass usually ranging between 103−107 u. BAKELITE. CBSE Class 12. A small molecule such as water or hydrochloric acid is eliminated in each condensation. Some examples of common condensation polymers are polyacetals, proteins, and polyamides. • Each monomer has two of the same functional groups. Answer : Polymers are high molecular mass macromolecules, which consist of repeating structural units derived from monomers. which means many units (parts). Therefore it is also called step growth polymerisation. For example, nylon 6, 6 is formed by condensation polymerization of hexamethylenediamine and adipic acid. Draw the repeating unit for a condensation polymer. Examples of condensation polymers are Nylon-6, 6, Dacron, Nylon 6 etc. BeTrained.in has solved each questions of NCERT Exemplar very thoroughly to help the students in solving any question from the book with a team of well experianced subject matter experts. Describe what is meant by a condensation polymer. (i) Phenol formaldehyde resins (Bakelite): These are formed by the condensation of two or more monomers with the elimination of simple molecules like H2O, NH3, ROH, etc. Class. Condensation polymerization is the process of formation of polymers by repeated condensation reactions between two different bi-functional or tri-functional monomers. Pre Boards. Polymers are high molecular mass macromolecules composed of repeating structural units derived from monomers. A small molecule such as water or hydrochloric acid is eliminated in each condensation. Some examples are ethene, vinyl chloride, acrylonitrile, phenol and formaldehyde etc. For example, nylon 6, 6 is formed by condensation polymerization of hexamethylenediamine and adipic acid. In a polymer, various monomer units are joined by strong covalent bonds. A small molecule is eliminated like water and in each condensation step. • Condensation polymers are made from two different monomers. Among them, starch and cellulose are the polymers of glucose molecules. • Ethane diol has two alcohol groups. NCERT Exemplar Class 12 Chemistry Chapter 15 Polymers. Example: Nylon-6,6; Question 4. A small molecule such as water or hydrochloric acid is eliminated in each condensation. We will also discuss some questions related to addition and condensation polymers in the Frequently Asked Questions (FAQ) section later. For example, nylon 6, 6 is formed by condensation polymerization of hexamethylenediamine and adipic acid. Polymers have a high molecular mass (103 − 107 u). Topics and Subtopics in NCERT Solutions for Class 12 Chemistry Chapter 15 Polymers: Section Name Topic Name 15 Polymers 15.1 Classification of Polymers. [NCERT Exemplar] (a) Dacron (b) Buna-S (c) Neoprene (d) Novolac. A small molecule such as water or hydrochloric acid is eliminated in each condensation. A small molecule such as water or hydrochloric acid is eliminated in each condensation. For example, nylon 6, 6 is formed by condensation polymerization of hexamethylenediamine and adipic acid. Get NCERT Exemplar Solutions for Class 12 Chapter Polymers here. The type of questions that will be asked from NCERT Class 12 Chemistry Chapter 15 are displayed in the below provided NCERT Exemplar Class 15 Chemistry Chapter 15. Q2: Explain natural and synthetic polymers with the help of two examples of each type? Class 12 Chemistry Polymers NCERT solutions are handy for students in many ways. 10. It is used for making good insulators, sheets, rods, switches, lacquers and adherent paints. Phenol formaldehyde resin . Monomers are the. Ans. Condensation polymers: ... Below is an example of the formation of Nylon 66, a common polymeric clothing material, involving one each of two monomers, hexamethylenediamine, and adipic acid, reacting to form a dimer of Nylon 66. With the help of it, candidates can prepare well for the examination. double or triple bonds to form polymers. Check the below NCERT MCQ Questions for Class 12 Chemistry Chapter 15 Polymers with Answers Pdf free download. Condensation polymers: Polymers formed by repeated condensation reaction between two different bi-functional or tri-functional monomeric units with elimination of simple molecules. Condensation polymerization is the process of formation of polymers by repeated condensation reactions between two different bi-functional or tri-functional monomers. A few common examples are starch, cellulose, proteins, rubber nucleic acids, etc. Condensation Polymer:-The condensation polymers are formed by repeated condensation reaction between two different bi-functional or tri-functional monomeric units. Condensation polymerization is the process of formation of polymers by repeated condensation reactions between two different bi-functional or tri-functional monomers. MCQ Questions for Class 12 Chemistry with Answers were prepared based on the latest exam pattern. Some examples are ethene, vinyl chloride, acrylonitrile, phenol and formaldehyde etc. For example, nylon 6, 6 is formed by condensation polymerization of hexamethylenediamine and adipic acid. Subject. simple and reactive molecules from which the polymers are prepared either by addition or condensation polymerisation. All solutions are explained using step-by-step approach. Condensation polymerization is the process of formation of polymers by repeated condensation reactions between two different bi-functional or tri-functional monomers. (a) Cellulose (b) Amylose (c) Amylopectin (d) Glycogen Solution: (d) Glycogen is a polymer of glucose … Condensation polymerisation produces a distinct functionalized species and is independent of each other. www.ncerthelp.com (Visit for all ncert solutions in text and videos, CBSE syllabus, note and many more) Chemistry Notes for class 12 Chapter 15 Polymers The word polymer has a Greek origin. The main difference between addition and condensation polymerization is that in addition polymerization the polymers are formed by the addition of monomers with no by-products whereas in condensation polymerization, the polymers are formed due to the condensation more than one different monomers resulting in the formation of small molecules such as HCl, water, ammonia, etc., … Here we have given NCERT Exemplar Class 12 Chemistry Chapter 15 Polymers. One example of a condensation polymer is Nylon 6,6. Single Correct Answer Type. A few common examples are starch, cellulose, proteins, rubber nucleic acids, etc. How is Nylon – 6, 6 different from Nylon -6? Eg: propene, ethene, vinyl chloride, styrene. II. Polymers can be synthetic as well as natural. Monomers are the. Multiple Choice Questions . Google Will End Support to Google Keep Chrome App by Feb 2021 ; AWS Launches its Next-gen GPU Instances Powered by … Some examples are polythene, nylon-66, bakelite, rubber, etc. Some common examples of condensation polymers are:Formaldehyde resins These include polymers like Bakelite and Melamine polymers. For example, nylon 6, 6 is formed by condensation polymerization of hexamethylenediamine and adipic acid. This chapter explains the terms monomer, polymer and polymerisation and encourages you to identify the applications of the same in daily life. It is a cross linked copolymer. fibres (nylon 6,6) and synthetic rubbers (Buna - S) are examples of man-made polymers extensively used in daily life as well as in industry. 11. Polymers can also be classified on the basis of their structure, molecular forces or modes of polymerisation. Example: polythene. NCERT Solutions for Class 12 Chemistry Part 1 Chapter 15 Polymers Class 12 Chapter 15 Polymers Exercise Solutions In text : Solutions of Questions on Page Number : 428 Q1 : What are polymers? What is a homo-polymer? 30. Sample Papers . This is almost everything that students need to know about addition and condensation polymers. (ii) Condensation polymers: The condensation polymers are formed by repeated condensation reaction between two different bi-functional or tri … Rubber, polythene and nylon 6, 6 are examples of polymers. Which of the following polymers of glucose is stored by animals? Polymers can be natural as well as synthetic. Practice to excel and get familiar with the paper pattern and the type of questions. Answer/Explanation. One example of a condensation polymer is Nylon 6,6. Condensation polymerization is the process of formation of polymers by repeated condensation reactions between two different bi-functional or tri-functional monomers. Write some examples of condensation polymers. Solution: Polymers are high molecular mass macromolecules, which are formed by repeating structural units derived from monomers. For example Nylon 6, 6 is a condensation polymerisation of adipic acid and hexamethylene diamine. For example, polythene is formed by addition polymerization of ethene. • When these monomers react, small molecules such as water are lost 2. However, those wanting to get full marks in Chemistry, Polymers are a short chapter to study. It is a chapter which is purely conceptual with a lot of emphasis in theory. Condensation polymers of dibasic acids and polyhydroxy alcohols . Condensation polymerization is the process of formation of polymers by repeated condensation reactions between two different bi-functional or tri-functional monomers. Some examples are polythene, nylon-66, bakelite, rubber, etc. Condensation polymerization is the process of formation of polymers by repeated condensation reactions between two different bi-functional or tri-functional monomers. What is polymerisation? At this point, the polymer could grow in either direction by bonding to another molecule of hexamethylenediamine or adipic acid, or to another dimer. Chemistry . Answer: Polymerisation is the process of formation of polymers from respective monomers, Homopolymers are polymers formed by the … In these polymerisation reactions, the elimination of small molecules such as water, alcohol, hydrogen chloride, etc. Dacron and Novolac are condensation polymers. As polymers are single, giant molecules i.e. Multiple Choice Questions (Type-I) NCERT … In a polymer, various … Practice more on Polymers Page - 1 www.embibe.com CBSE NCERT Solutions for Class 12 Chemistry Chapter 15 Back of Chapter Questions 1. 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