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Chemistry Test 168

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Chemistry Test 168
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  • Question 1
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    What is the mass of precipitate formed when 50 mL of 16.9% solution of AgNO3 is mixed with 50 mL of 5.8% NaCl solution ?

    (Ag = 107.8, N = 14, O = 16, Na = 23, Cl = 35.5)

    Solution

     

  • Question 2
    4 / -1

    Energy of an electron is given by

    Wavelength of light required to excite an electron in a hydrogen atom from level n = 1 to n = 2 will be:

    Solution

     

  • Question 3
    4 / -1

    In which of the following arrangements, the sequence is not strictly according to the property written against it?

    Solution

     

  • Question 4
    4 / -1

    Predict the correct order among the following:

    Solution

     

  • Question 5
    4 / -1

    Equal moles of hydrogen and oxygen gases are placed in a container with a pin-hole through which both can escape.

    What fraction of the oxygen escapes in the time required for one-half of the hydrogen to escape?

    Solution

     

  • Question 6
    4 / -1

    Solution

     

  • Question 7
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    Solution

     

  • Question 8
    4 / -1

    Consider the reaction:

    Which of the following statements is correct?

    Solution

     

  • Question 9
    4 / -1

    Which of the following species is diamagnetic in nature?

    Solution

     

  • Question 10
    4 / -1

    In Castner-Kellner cell for production of sodium hydroxide:

    Solution

    In Castner Kellner cell, sodium amalgam is formed at mercury cathode.

     

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