MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistrySolid statePrevious Year Questions
Which type of defect present in NaCl ? (JIPMER 2019)
A.Frenkel defect
B.Schottky defect✓ Correct
C.F-centre defect
D.None of these
Explanation
id state 34 Sol. Schottky defect is a vacancy defect in ionic solids. It is shown by those ionic substance in which the cations and anions are of almost similar sizes. Schottky defect is present in sodium chloride (NaCl). This defect arises when equal number of cation and anions are missing from their lattice sites such that electrical neutrality is maintained. e.g.,CsCl,NaCl,KCl,AgBr,etc.
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