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Chemistry Test ...

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  • Question 1
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    Which of the following polymers has ester linkage?

  • Question 2
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    Cation having maximum number of unpaired electrons is _____________.

  • Question 3
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    The correct statement regarding entropy is:

  • Question 4
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    X(s)⇌A(g)+2B(g)

    Y(s)⇌2B(g)+C(g)

    KP1=9×10−3atm3

    If the ratio, KP1 : KP2=2, then the total pressure of gases over a mixture of excess of X and Y is :

  • Question 5
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    The monomer of nylon-6 is :

  • Question 6
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    Zn Amalgam is prepared by the electrolysis of aqueous ZnCl2 using Hg cathode (9 gm). How much current should be passed through ZnCl2 solution for 1000 seconds to prepare a Zn amalgam with 25% Zn by weight ?(Zn atomic weight =65.4)

  • Question 7
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    In an atom, two electrons move around the nucleus in circular orbits of radii R and 4R. The ratio of the time taken by them to complete one revolution is (consider Bohr model to be valid):

  • Question 8
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    The solubility of Pb(OH)2 in water is 6.7×10−6M. Calculate the solubility of Pb(OH)2 in a buffer solution of pH=8.

  • Question 9
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    Which of the following is a polysacchardie?

  • Question 10
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    Granite is polished by :

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