This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Chemistry (Part Ii) Chapter 15 Polymers – Quiz 12 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part Ii) Chapter 15 Polymers Quiz 12 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which molecules are primarily involved in forming the structure of proteins? A) Lipids that create cellular boundaries. B) Nucleic acids that carry genetic information. C) Amino acids that link to form polypeptide chains. D) Carbohydrates that provide energy. Show Answer Correct Answer: C) Amino acids that link to form polypeptide chains. 2. What is the process called when monomers are joined together to form a polymer with the release of a small molecule like water? A) Addition polymerization. B) Condensation polymerization. C) Free radical polymerization. D) Ionic polymerization. Show Answer Correct Answer: B) Condensation polymerization. 3. In the formation of a disaccharide from two monosaccharides, what type of reaction occurs? A) Hydrolysis. B) Dehydration synthesis. C) Oxidation. D) Reduction. Show Answer Correct Answer: B) Dehydration synthesis. 4. What is the definition of a functional group? A) Family of organic molecules with the same functional group. B) Gives a family of organic molecules their characteristic reactions. C) Compound consisting of just hydrogen and carbon. D) The group on the end of a molecule. Show Answer Correct Answer: B) Gives a family of organic molecules their characteristic reactions. 5. Monomers use this type of bond to form polymers A) Metallic. B) Covalent. C) Ionic. D) Nuclear. Show Answer Correct Answer: B) Covalent. 6. One way to recycle this is through a process by "Agilyx" that uses heat to break the polymer into monomers to be reformed again. A) Silk. B) DNA. C) Styrofoam. D) Starch. Show Answer Correct Answer: C) Styrofoam. 7. Polymers are synthesized via A) Dehydration. B) Addition. C) Dehydration and addition. D) Neither. Show Answer Correct Answer: C) Dehydration and addition. 8. At what degree Celsius does thermoplastic reach its softening point where it can be stretched to its desired shape? A) 20 degree Celsius. B) 250 degree Celsius. C) 25 degree Celsius. D) 200 degree Celsius. Show Answer Correct Answer: D) 200 degree Celsius. 9. If you were to look at grains of table salt (sodium chloride, NaCl) with a magnifying glass, you would see that each grain is a little cube. Why are salt grains cubical? A) All extended structure compounds form cubes. B) Sodium and chlorine atoms both have cubical shapes. C) In the extended structure of NaCl, atoms are arranged in a cubical pattern. D) A molecule of NaCl contains eight atoms, each at one of the corners of a cube. Show Answer Correct Answer: C) In the extended structure of NaCl, atoms are arranged in a cubical pattern. 10. Which of the following is a characteristic of thermosetting polymers? A) They soften when heated and can be reshaped. B) They are soluble in water. C) They harden permanently when heated. D) They are made from natural sources only. Show Answer Correct Answer: C) They harden permanently when heated. 11. What is the role of water in hydrolysis reactions? A) It acts as a catalyst. B) It is a reactant. C) It is a product. D) It is not involved. Show Answer Correct Answer: B) It is a reactant. 12. What is an example of a natural polymer? A) Polyethylene. B) PVC. C) DNA. D) PTFE. Show Answer Correct Answer: C) DNA. 13. How many carbons (how long) are polyethylene chains? A) 0-10 carbons. B) 10-100 carbons. C) 100-1000 carbons. D) 10, 000 or more carbons. Show Answer Correct Answer: D) 10, 000 or more carbons. 14. Which of the following is a synthetic polymer? A) Silk. B) Wool. C) Nylon. D) Cellulose. Show Answer Correct Answer: C) Nylon. 15. ..... method is applicable mainly to the thermoplastic resins. A) Compression moulding. B) Injection moulding. C) Blow moulding. D) Extrusion moulding. Show Answer Correct Answer: B) Injection moulding. 16. Imagine you're working with a variety of materials in a product design workshop. What property would you find common in materials classified as thermoplastics? A) They cannot be recycled. B) They soften when heated. C) They are used mainly for insulation. D) They are all derived from natural materials. Show Answer Correct Answer: B) They soften when heated. 17. Viscoelastic strain means A) Plastic strain. B) Elastic strain. C) Both. D) None. Show Answer Correct Answer: C) Both. 18. What conditions are required for addition polymerization reactions to work? A) Low pressures and a catalyst. B) High pressures and a catalyst. C) Low pressures and no catalyst. D) High pressures and no catalyst. Show Answer Correct Answer: B) High pressures and a catalyst. 19. Which of the following would be a suitable use for nylon? A) Making ropes. B) Making water pipes. C) Making packing foam. D) Making vinyl records. Show Answer Correct Answer: A) Making ropes. 20. A ..... consists of many monomers bonded together. A) Monomer. B) Hydrocarbon. C) Peptide. D) Polymer. Show Answer Correct Answer: D) Polymer. 21. A monomer breaks one of its double bonds and uses the freed electrons to bond with other monomers. What is the name of this process? A) Addition polymerization. B) Carbon polymerization. C) Bond polymerization. D) Polypolymerization. Show Answer Correct Answer: A) Addition polymerization. 22. Which of the following best describes the process of polymerization? A) The breakdown of polymers into monomers. B) The combination of monomers to form a polymer. C) The conversion of polymers into energy. D) The transformation of monomers into ions. Show Answer Correct Answer: B) The combination of monomers to form a polymer. 23. The monomer used to produce orlon is $_{ }$ A) A. CH$_{2}$=CHF. B) B.CH$_{2}$=CCl$_{2 }$. C) $_{ }$c. CH$_{2}$=CHCl. D) D. CH$_{2}$=CH-CN. Show Answer Correct Answer: D) D. CH$_{2}$=CH-CN. 24. Which of the following is a polyamide? A) Teflon. B) Nylon-6, 6. C) Terylene. D) Bakelite. Show Answer Correct Answer: B) Nylon-6, 6. 25. Which material would you use for sports car bodies? A) Acrylic. B) HIPS. C) Biopol. D) Urea Formaldehyde. E) Polyester resin. Show Answer Correct Answer: E) Polyester resin. ← PreviousNext →Related QuizzesClass 12 Chemistry (Part Ii) Chapter 15 Polymers Quiz 1Class 12 Chemistry (Part Ii) Chapter 15 Polymers Quiz 2Class 12 Chemistry (Part Ii) Chapter 15 Polymers Quiz 3Class 12 Chemistry (Part Ii) Chapter 15 Polymers Quiz 4Class 12 Chemistry (Part Ii) Chapter 15 Polymers Quiz 5Class 12 Chemistry (Part Ii) Chapter 15 Polymers Quiz 6Class 12 Chemistry (Part Ii) Chapter 15 Polymers Quiz 7Class 12 Chemistry (Part Ii) Chapter 15 Polymers Quiz 8Class 12 Chemistry (Part Ii) Chapter 15 Polymers Quiz 9Class 12 Chemistry (Part Ii) Chapter 15 Polymers Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books