Question:
A Cation vacancy and an anion vacancy in a crystal of the type \(AB\) is called
A Cation vacancy and an anion vacancy in a crystal of the type \(AB\) is called
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Schottky defect consists of paired cation and anion vacancies in an ionic crystal.
Updated On: May 7, 2026
- Frenkel defect
- Schottky defect
- Vacancy defect
- Interstitial defect
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The Correct Option is B
Solution and Explanation
Concept:
Schottky defect is a point defect in ionic crystals where equal numbers of cations and anions are missing from their lattice sites.
Step 1: In an ionic crystal of type \(AB\), there are equal numbers of cations and anions.
Step 2: If one cation vacancy and one anion vacancy are created, electrical neutrality remains maintained.
Step 3: This paired vacancy defect is known as Schottky defect.
Step 4: Frenkel defect involves displacement of an ion from its normal site to an interstitial site. Therefore, the correct answer is: \[ \boxed{\text{Schottky defect}} \]
Step 1: In an ionic crystal of type \(AB\), there are equal numbers of cations and anions.
Step 2: If one cation vacancy and one anion vacancy are created, electrical neutrality remains maintained.
Step 3: This paired vacancy defect is known as Schottky defect.
Step 4: Frenkel defect involves displacement of an ion from its normal site to an interstitial site. Therefore, the correct answer is: \[ \boxed{\text{Schottky defect}} \]
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