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Polymers Test -...

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  • Question 1
    1 / -0

    Assertion (A) : The plants yield a milky suspension of crude rubber called latex.
    Reason (R) : The latex contains about $$85\%$$ rubber.

  • Question 2
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    A. Natural rubber is an elastomer.
    R. The inter-molecular forces of attraction between the polymer chains are weak vander Waals forces.

  • Question 3
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    A. Styrene is more reactive than propylene towards cationic polymerization

    R. The carbocation resulting from styrene is more stable than that resulting from propylene.

  • Question 4
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    Assertion(A):  Nylon - $$6$$ is obtained by polymerization of caprolactam.

    Reason(R):  It is a polyamide.  

  • Question 5
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    STATEMENT-1 : PMMA (Polymethyl methacrylate) is used for making lenses and light covers.
    STATEMENT-2 : It has excellent light transmission properties.

  • Question 6
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     (1) : For natural polymers, PDI value is always equal to unity.

     (2) : The ratio of $$\bar{M_{w}}$$ and $$\bar{M_{n}}$$ of a polymer is called PDI.  

  • Question 7
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    Which one of the following sets form the biodegradable polymer?

  • Question 8
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    A: Polymethyl methacrylate is also known as plexi glass.
    R: PMMA is used in decorative articles.

  • Question 9
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    Generally, polyamides are _____.

  • Question 10
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    List - I                                       List - II
    A) Polystyrene                        p) Condensation polymer
    B) Polythene                           q) Thermoplastic polymer
    C) Nylon- $$6, \:6$$                        r) Polyamide
    D) Terylene                             s) Addition polymer

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