Q. 213.7( 29 Votes )

Explain how vacan

Answer :

To explain this, let us take an example of NaCl doped with SrCl, impurity when SrCl2 is added to NaCl solid as an impurity, two Na+ ions will then be replaced and one of their site will be occupied by Sr2- while the other will remain vacant. Thus, we can say that when a cation of higher valance is added as an impurity to an ionic soil, two or more cations of lower valency are replaced by a cation of higher valence to maintain electrical neutrality. Hence, some cationic vacancies are created.


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