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The p-Block Ele...

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  • Question 1
    1 / -0

    The ions $$Mg^{+2}$$ and $$PO_{4}^{-3}$$ combine to form compounds:

  • Question 2
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    Nitrogen can exhibit which of the following oxidation states:

  • Question 3
    1 / -0

    Magnesium on heating to redness in an atmosphere of $$N_{2}$$ and then on treating with $$H_{2}O$$ gives?

  • Question 4
    1 / -0

    Nitrogen is liberated by the thermal decomposition of only :

  • Question 5
    1 / -0

    Phosphide and phosphate ions are:

  • Question 6
    1 / -0

    The steps for the manufacture of nitric acid by Ostwald process are given. Arrange them in sequence.
    (a) Recirculation of nitric oxide
    (b) Addition of $$H_2O$$ to nitrogen dioxide
    (c) Oxidation of nitric oxide.
    (d) Catalytic oxidation of ammonia

  • Question 7
    1 / -0

    At low temperatures, nitrogen:

  • Question 8
    1 / -0

    Industrial preparations of $$HNO_{3}$$ by Ostwald's process involves:

  • Question 9
    1 / -0

    Nitrogen reacts with a metal $$M$$ to produce a compound $$X$$. This compound $$X$$, when dissolved in water forms pungent gas $$Y$$ which can be identified easily by the formation of white fumes in the presence of $$HCl$$.

    Identify the compound $$X$$.

  • Question 10
    1 / -0

    $$PCl_5$$ molecule has:

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