The Solid State

True Or False

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

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

    A.

    True

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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

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

    A.

    False

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

    A.

    True

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

    A.

    False

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

    A.

    True

    754 Views
    Answer
    Dimagnetic substances are strongly attracted by magnetic field.

    A.

    False

    257 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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