If molten NaCl contains SrCl 2 as impurity, crystallization can generate

If molten NaCl contains SrCl2 as impurity, crystallization can generate
  1. Anionic vacancies
  2. Cationic vacancies
  3. Metal excess defects
  4. Metal deficiency defects

Solution

If molten NaCl containing a little amount of SrCl2 is crystallised, some of the sites of Na+ ions are occupied by Sr2+. Each Sr2+ replaces two Na+ ions. It occupies the site of one ion and the other site remains vacant. The cationic vacancies thus produced are equal in number to that of Sr2+ ions.

 

Asked in: AP EAMCET 2022 (04 Jul Shift 1)

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