Polymers are used widely in our day-to-day life. They fulfil the requirements of strength, elasticity, insulation, and so on. Polymers have always come up with the promising compounds that helped shape the needs of the livelihoods of mankind. Polymers are large heavy molecules which are formed by joining the units of monomers together by characteristic bonds.
Download Class 12 Chemistry Worksheet on Chapter 15 Polymers Set 5 PDF
CBSE Class 12 Chemistry Chapter 15 Polymers Worksheet – Set 5
Q-1: Glyptal is formed by the reaction of glycerol with___.
a.) Malonic acid
b.) Acetic acid
c.) Maleic acid
d.) Phthalic acid
Q-2: Select the step-growth polymer.
a.) Polyacrylonitrile
b.) Polythene
c.) Polyisoprene
d.) Nylon
Q-3: Why is starch a biodegradable polymer?
Q-4: The monomeric unit in PVC is:
a.) Vinyl chloride
b.) Styrene
c.) Isoprene
d.) Glucose
Q-5: How can the stiffness of the polymers be enhanced?
Q-6: Which of the following is a linear polymer?
a.) Nylon
b.) Low density polythene (LDPE)
c.) Bakelite
d.) Melamine-formaldehyde polymer
Q-7: How can the length of the polymer chain be increased?
Q-8: What is the difference between the chain growth and the step growth polymerization processes?
Q-9: The formation of polymers using the monomeric units initiates by
a.) the condensation reaction between the monomers
b.) the hydrolysis of monomers
c.) the coordination reaction between the monomers
d.) the conversion of monomeric units into their ions
Q-10: Name a polymer that is synthesized by the step growth polymerization method.
Q-11: What percentage of sulphur is used in the vulcanization of rubber?
Q-12: What is the difference between Nylon-6,6 and Nylon-6,10?
Q-13: Which polymer is commonly known as Thermocol?
Q-14: How does the presence of oxygen inhibit the process of polymerization?
Q-15: The monomer used in the formation of Nylon-6,6 is____.
a.) Sulphurous acid
b.) Adipic acid
c.) Phthalic acid
d.) Sulphuric acid
Q-16: What is the role of using a surfactant in the suspension polymerization?
Q-17: The monomer in Neoprene is:
a.) CH2=CHCl
b.) Cl2C=CCl2
c.) F2C=CF2
d.) CH2=C(Cl)-CH=CH2
Q-18: What is an aromatic monomer? Give one example.
Q-19: What is the thermal polymerization process?
Q-20: What is a biopolymer? Give examples.
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