Multiple choice

When cation and anion both are missing from their regular sites in an ionic solid, then what are the defects called?

  1. Frenkel defects

  2. Schottky defects

  3. Interstitial defects

  4. Vacancy defects

  5. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Yes, it is correct. When cations and anions both are missing from regular sites, the defect is called Schottky defect. In Schottky defects, the number of missing cations is equal to the number of missing anions in order to maintain the electrical neutrality of the ionic compound.

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