JEE Main Chemistry question

Not in JEE Main or NEET syllabus

Statement 1: In the Schottky defect, an equal number of extra cations and electrons are present in the interstitial sites.

Statement 2: In the Schottky defect, an equal number of cations and anions are missing.

(A)Assertion is True, Reason is True; Reason is correct explanation for Assertion
(B)Assertion is True, Reason is True; Reason is not correct explanation for Assertion
(C)Assertion is True, Reason is False
(D)Assertion is False, Reason is TrueCorrect

Answer: (D)

Solution

Statement 1 describes a metal-excess (F-centre) type defect, not a Schottky defect, so it is false. A Schottky defect is correctly described by

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Question ID VK-134261