If a pair of one cation and one anion is missing in an ionic crystal such that those pairs of ions are equal to maintain electrical neutrality, then that pair of vacant sites is called

If a pair of one cation and one anion is missing in an ionic crystal s

1.	If a pair of one cation and one anion is missing in an ionic crystal such that those pairs of ions are equal to maintain electrical neutrality, then that pair of vacant sites is called
A.	Schottky imperfection
B.	pair of vacancies
C.	Frenkel defect
D.	Point imperfection
Answer» B. pair of vacancies

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If a pair of one cation and one anion is missing in an ionic crystal such that those pairs of ions are equal to maintain electrical neutrality, then that pair of vacant sites is called

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