Polymers

Multiple Choice Questions

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Which of the following is a condensation polymer?

  • [-NH-CO(CH2)5-]n

  • Rubber

  • Polyvinyl chloride

  • Polyethylene

A.

[-NH-CO(CH2)5-]n

Condensation polymer are those in which monomer unit condense to form large units along with loss of small molecules like H2O, NH3. 

[-HN-CO-(CH2)5] is amide linkage, formed by condensation of -COOH group with -NH2 group. It is accompained by loss of water. So, it is condensation polymer.

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    A polymer containing nitrogen is :

    • bakelite

    • dacron

    • rubber

    • nylon-66

    Answer

    Which of the following is a polyamide?

    • Nylon-6, 6

    • Terylene

    • Polythene

    • Buna - S

    Answer

    Formation of terylene is an example of:

    • condensation polymerisation

    • addition polymerisation

    • esterification

    • saponification

    Answer

    The monomer used in novolac, a polymer used in paints

    • melamine and formaldehyde

    • phenol and formaldehyde

    • butadiene and acrylo nitrile

    • butadiene and styrene

    Answer
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    Which of the following is not a biodegradable polymer?

    • Glyptol

    • Polyhydroxy butyrate-CO-β-hyrdoxy valerate

    • PHBV

    • Nylon 2-nylon-6

    Answer

    Teflon polymer is formed by polymerization of :

    • CH2=CH-CN

    • F2C=CF2

    • Cl2 = CH2

    • H2C = CHCl

    Answer

    Which of the following is not true?

    • In vulcanisation, the rubber becomes harder and stronger

    • Natural rubber has 'trans' configuration at every double bond

    • Buna-S is a copolymer of butene and styrene

    • Natural rubber is 1, 4-polymer of isoprene

    Answer

    'Terylene is not a

    • copolymer

    • polyester fibre

    • chain growth polymer

    • step growth polymer

    Answer
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    Which of the following is called polyamide ?

    • Terylene

    • Rayon

    • Nylon

    • Orlon

    Answer
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