The Solid State

  • Question 33
    CBSEENCH12005381

    In a crystal of zinc sulphide, zinc occupies tetrahedral voids. What is the coordination number of zinc?

    Solution
    The coordination number of zinc is 4.
    Question 34
    CBSEENCH12005382

    Why is potassium chloride sometimes violet instead of pure white?

    Solution
    This  is due to the electrons trapped in anionic vacancies or due to F-centres.
    Question 35
    CBSEENCH12005383

    When high temperature is given to ferromagnetic substance what effect can be obtain ?

    Solution
    As the temperature is raise the ferromagnetic substance starts to become paramagnetic due to randomisation spins.
    Question 36
    CBSEENCH12005384

    For hcp crystal structure of an element What is the maximum possible coordination number ?

    Solution

     The maximum coordination number is 12 in hcp crystal .

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