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Hydrogen And Its Compound Test - 2
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Hydrogen And Its Compound Test - 2
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  • Question 1/7
    1 / -0

    Heavy water is used in atomic reactor as

    Solutions

    Heavy water is used as a moderator to slow down the speed of fast moving neutrons and as well as a coolant.

  • Question 2/7
    1 / -0

    Heavy water freezes at

    Solutions

    Heavy water freezes at a slightly higher temperature than water.

  • Question 3/7
    1 / -0

    The pH of D2O and H2O at 298 K is

    Solutions

    pH of heavy water is slightly more than seven.

  • Question 4/7
    1 / -0

    Which of the following is not true

    Solutions

    D2O actually has higher freezing point (3.8°C) than water H2O (0°C).

     

  • Question 5/7
    1 / -0

    Which of the following will determine whether the given colourless liquid is water or not

    Solutions

    Colourless anhydrous CuSo4 becomes blue on reaction with water.

     

  • Question 6/7
    1 / -0

    Lead pipes are not used for carrying drinking water because

    Solutions

    Due to plumbosolvancy, lead dissolves in water to a small extent to form soluble hydroxide which is poisonous so lead pipe is not used for carrying drinking water.

     

  • Question 7/7
    1 / -0

    Which of the following will cause softening of hard water

    Solutions

    In cation exchange resin Mg+2 and Ca+2 (cations) are replaced by Na+ ions.

     

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