The Solid State

Short Answer Type

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Which point defect lowers the density of a crystal?

Shottkey defect can lower the density of a crystal.

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    What is the nature of crystal defect produced when sodium chloride is doped with MgCl2?
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    Name a substance which on addition to AgCl causes cation vacancy in it.
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    What is coordination number of a metal atom in ccp structure?
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    What makes alkali metal halides sometimes coloured, which are otherwise colourless?
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    What happens when a ferromagnetic substance is subjected to high temperature?
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    How many atoms can be assigned to its unit cell if an element forms
    (i) a body centred cubic cell, and (ii) a face centred cu    bic cell?
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    Name an element with which germanium can be doped to produce an n-type semiconductor.
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    Define the term ‘amorphous’.
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    What is the maximum possible coordination number of an atom in an hcp crystal structure of an element?
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