The Solid State

True Or False

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When electrons are trapped in the crystal in the anionic vacancy, the defect is known as F-centres.

A.

True

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    In the crystal structures of sodium chloride, the arrangement of CI– ions is bcc.

    A.

    False

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    Answer
    On doping Ge metal with a little of In (Indium) we get p-type semi-conductor.

    A.

    True

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    Answer

    AgBr can show both Schottky and Frenkel defect. State True or False

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    The size of an octahedral hole is less than that of tetrahedral hole.

    A.

    False

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    Answer
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    In hcp and ccp structures, only 68% of the total space is filled by atoms.

    A.

    False

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    Multiple Choice Questions

    The number of atoms in a face-centred cubic unit cell is:

    • 4

    • 6

    • 1

    • 2

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    Answer

    True Or False

    Dimagnetic substances are strongly attracted by magnetic field.

    A.

    False

    257 Views
    Answer
    In the CaF2 structure, the coordination number of cations and anions are respectively 4 and 8.

    A.

    True

    754 Views
    Answer
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    Multiple Choice Questions

    Schottky defect generally appears in
    • NaCl
    • KCl
    • CsCl 
    • all the above
    420 Views
    Answer
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