Which one of the following is not used as an initiator in ionic p
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    Polymers

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    311.

    Which one of the following is not used as an initiator in ionic polymerisation?

    • NaNH2

    • SnCl2

    • AlCl3

    • (C6H5CO)2O2

    D.

    (C6H5CO)2O2

    In ionic  polymensation ions/ion pairs have charge active centers i.e , ends wth ionc-center.
    ·: (C6H5CO)2O, is a covalent compound and will not give any ionic center for chain initation, thus can not be used as an initators in ionic polymensation.

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    312.

    Which of the following is an example of condensation polymers?

    • Polythene

    • PVC

    • Orlon

    • Terylene

    Answer
    313.

    Natural rubber is formed by polymerisation of which of the following?

    • Phenol

    • Isoprene

    • Chloroprene

    • Styrene

    Answer
    314.

    Which of the following is the thermosetting plastic?

    • Nylon

    • Bakelite

    • Polythene

    • Polystyrene

    Answer
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    315.

    Natural rubber is

    • butadiene

    • isoprene

    • neoprene

    • None of the above

    Answer
    316.

    Monomer of polythene is

    • ethylene

    • propylene

    • vinyl chloride

    • None of the above

    Answer
    317.

    Nylon obtained by the condensation of adipic acid with hexamethylene diamine

    • nylon 6, 6

    • nylon 7, 6

    • nylon 6, 5

    • nylon 9, 7

    Answer
    318.

    Polymerisation in which two or more chemically different monomers take part, is called

    • addition polymerisation

    • co-polymerisation

    • chain polymerisation

    • homo polymerisation

    Answer
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    319.

    Strach is the polymer of

    • glucose

    • fructose

    • both (a) and (b)

    • None of these

    Answer
    320.

    Polythene is an addition polymer of

    • methane

    • ethane

    • ethylene

    • acetylene

    Answer
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