Chemistry chapter 19 Entry Test MCQs
Topic 19
Polymers
1. Which one among the following is a thermosetting plastic
a. Bakelite
b. PVC
c. Nylon
d. PVA
2. The basis on the mode of their formation, the polymers can be classified as
a. Organic and inorganic
b. Synthetic and natural
c. Addition and condensation polymers
d. Homo polymer and copolymers
3. Thermoplastics are
a. Branched polymers
b. Linear polymers
c. Crystalline
d. Highly cross-linked
4. Which of the following is not a polymer?
a. Leather
b. Wool
c. Fat
d. Cotton
5. Which of the following is a branched polymer?
a. High density polymer
b. Low density polymer
c. Nylon
d. Polyester
6. Which of the following is an addition polymer?
a. Ethylene
b. Glucose
c. Terylene
d. Polyethylene
7. Which one of the following is a linear polymer?
a. Starch
b. Amylopectin
c. Amylose
d. Glycogen
8. Polyethylene is
a. Alternate copolymer
b. Random copolymer
c. Crosslinked copolymer
d. Homo polymer
9. Nylon is not a
a. Copolymer
b. Condensation polymer
c. Homopolymer
d. Polyamide
10. Which of the following is a step-growth polymer?
a. Nylon
b. Polyisoprene
c. Poly acrylonitrile
d. Polythene
11. Polymer formation from monomers starts by
a. Hydrolysis of monomers
b. Condensation reaction between monomers
c. Coordinate reaction between monomers
d. Conversion of monomer to monomer ions by protons
12. When condensation product of hexamethylenediamine and adipic acid is heated to 553K in an atmosphere of nitrogen for about 4-5 hours, the product obtained is
a. Liquid polymer of nylon 6,6
b. Liquid polymer of nylon 6,6
c. Liquid polymer of nylon 6
d. Gaseous polymer of nylon 6,6
13. The plastics if are hard, become soft and readily workable by addition of certain compounds called
a. Plasticisers
b. Catalysts
c. Polymers
d. Terminators
14. Vinyl chloride can be converted into PVC. In this reaction, the catalyst used is
a. Anhydrous zinc chloride
b. Peroxides
c. Anhydrous AlCl3
d. Cuprous chloride
15. PVC is prepared by the polymerisation of
a. Propene
b. Ethylene
c. 1-chloroethene
d. 1-chloropropene
16. Which is not a property of nylon?
a. Textile fibre
b. Abrasion resistance
c. Bridges
d. Toughness
17. As the molecular weight increases the tensile strength of polymers
a. Remains unchanged
b. Increases
c. Uncertain
d. Decreases
18. Acrylic resins are
a. Dark brown and thermosetting
b. Colourless and transparent
c. White like milk
d. Dark brown and thermoplastic
19. Which of the following intermolecular forces are present in ‘nylon–6,6
a. Dipole-dipole interaction
b. Vander Waals
c. Debye forces
d. Hydrogen bonding
20. Polyvinyl chloride is
a. An addition product of vinyl chloride
b. An isomer of vinyl chloride
c. A polymer of hydrated vinyl chloride
d. An allotrope polymer of vinyl chloride
21. Which of the following polymers are hard
a. Branched chain
b. Linear
c. Thermoplastic
d. Cross-linked
22. Styrene at room temparature is
a. Gas
b. Solid
c. Colloidal solution
d. Liquid
23. Which of the following statement is correct regarding the drawbacks of raw rubber
a. It has little durability
b. It is plastic in nature
c. It has large water-absorption capacity
d. All of these
Carbohydrates
24. Complete hydrolysis of cellulose gives
a. D-glucose
b. D-fructose
c. L-glucose
d. D-ribose
25. Which of the following is a carbohydrate?
a. Haemoglobin
b. Leucine
c. Maltase
d. milk sugar