Mcq on polymers
WebMultiple choice questions Unit III: Synthetic organic polymers 1.Polymer formed by the polymerization of hexamethylene diamine and adipic acid is i)Teflon ii)Nylon 6,10 iii)Nylon 6,6 iv)Bakelite 2.Polymer obtained by the polymerization of only one type of monomer molecule is i)Homopolymer ii)Copolymer iii)Heteropolymer iv)Addition polymer … WebHome » MCQs » Engineering MCQs » MCQs on Thermoplastics. MCQs on Thermoplastics. 1 - Question. Thermoplastics are formed by _____ a) Addition ... Thermoplastics are plastic polymer substances formed by the addition polymerization process. They are linear polymers containing chain molecules. These plastics tend to become soft when heated …
Mcq on polymers
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Web12 apr. 2024 · Polymer MCQ Quiz - Objective Question with Answer for Polymer - Download Free PDF. Last updated on Apr 8, 2024. ‘Polymer’ is a Greek word with the combined … Weba) The amount of oxygen available in the headspace of canned food is kept at a high level so as to limit losses of vitamin C. b) Reheating canned vegetables before serving only causes small losses of vitamin C. c) Losses of vitamin C are much higher for most canned fruits than those for canned vegetables.
WebPolymer Chemistry MCQ With Answers Pdf Chapter 15 Class 12 Question 1. Bakelite is an example of. (a) elastomer. (b) fibre. (c) thermoplastic. (d) thermosetting. Answer. MCQ On Polymers Chapter 15 Class 12 Question 2. Arrange the following polymers is an increasing order of intenqolecular forces: fibre, plastic, elastomer. WebPolymers Chemistry NEET and AIPMT Practice questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 Questions, NCERT …
WebPolymer Engineering of Technology MCQ Practice Test - Set 18 MCQ Polymer Tech. Practice Test: Question Set - 18 1. Which of the following is not a natural fibre? (A) Silk (B) Viscose rayon (C) Wool (D) Cotton 2. Gutta percha rubber is (A) Soft & tacky at room temperature (B) An isomer of natural rubber (C) A thermosetting resin WebQ. These material change their shape when under a load, but return to their original shape when load is removed. Q. These materials break or crumble rather than deform under a load. Q. These material can easily be shaped by hammering or …
Web11 sep. 2014 · Synthetic polymers (polydisperse) : The molecular weights of polymers are distributed c. Mechanical properties are influenced by molecular weight much lower molecular weight ; poor mechanical property much higher molecular weight ; too tough to process optimum molecular weight ; 105 -106 for vinyl polymer, 15,000 - 20,000 for …
WebNone of the above. 4. Thermosetting materials are. the plastics which can be softened even after they have set and hardened. the plastics which require heat and pressure to mould them into shape. both a. and b. none of the above. 5. Which plastic materials contain strong cross linkings in their molecular structure? did the ny islanders win todayWeb23 aug. 2013 · Exposure to ultraviolet (UV) radiation may cause the significant degradation of many materials. UV radiation causes photooxidative degradation which results in breaking of the polymer chains, produces free radical and reduces the molecular weight, causing deterioration of mechanical properties and leading to useless materials, after an … foreign ions introduced to waterWebPolymers Chemistry Practice questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 Questions, NCERT Exemplar … foreign involvement in the american civil warWebD) Polymeric impurities E) Temperature control during polymerization 6. In emulsion polymerization, the principal place where the monomer polymerizes is A) Monomer droplets B) Aqueous phase C) Surfactant micelles D) Surface of reactor E) Air-liquid interface 7. Polypropylene produced commercially using a Ziegler-Natta catalyst is predominantly ... foreign inward ttWeb2 sep. 2024 · NEET Chemistry Polymers Multiple Choice Questions make you feel confident in answering the question in the exam & increases your scores to high. MCQs … foreign ip addresses in my computerWebPhenolic, urea, and unsaturated polyesters are common examples of thermosetting commodity plastics. The remaining choices, along with PVC, are examples of the commodity type of thermoplastics. advertisement 4 - Question. ... Get weekly updates about new MCQs and other posts by joining 18000+ community of active learners . foreign ip addresses on my routerWeb14 apr. 2024 · Practice MCQ questions of POLYMER for NEET 2024. Starts on Apr 14, 2024 • 4:45 PM. Yogendra Singh. 121 followers • Chemistry. In this class we will be … did the nys bond issue pass