AP EAMCET20224 Jul 2022Morning ShiftChemistrySolid StateActual
If molten NaCl contains SrCl 2 as impurity, crystallization can generate
Options
- AAnionic vacancies
- BCationic vacancies
- CMetal excess defects
- DMetal deficiency defects
Correct answer
B. Cationic vacancies
Step-by-step solution
If molten NaCl containing a little amount of SrCl 2 is crystallised, some of the sites of Na + ions are occupied by Sr 2+ . Each Sr 2+ 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 Sr 2+ ions.