Examine the defective crystal lattice given below and answer the following questions:
(a) Name of defect present in ionic solid.
(b) Out of AgCl and NaCl, which is most likely to show this type of defect and why?
(c) Why the defect is also as dislocation defect?

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Solution

This is Frankel defect
AgCl shows Frenkel defect while NaCl does not. ... Frenkel defect is shown by those in which there is large difference in the size of cations and anions. Hence,Frenkel defect is shown by AgCl due to small size of Ag+ ion but not by NaClbecause alkali metal ions can not fit into interstital sites.
this defect is call dislocation defect because in this a cation genarrly is dislocated from its site.

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Similar questions

Which of the following defects is also known as dislocation defect ?

(a) Frebkel defect (b) Schottky defect

(c)Non-stoichiometric defect (d)Simple interstitial defect

\begin{matrix} A^{+} & B^{-} & A^{+} & B^{-} & A^{+} B^{-} & O & B^{-} & A^{+} & B^{-} A^{+} & B^{-} & A^{+} & O & A^{+} B^{-} & A^{+} & B^{-} & A^{+} & B^{-} \end{matrix}

Frenkel defect is also Known as ................

(a) stoichiometric defect (b) dislocation defect

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