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प्रश्न
Given below are two statements:
Statements I: Frenkel defects are vacancy as well as interstitial defects.
Statements II: Frenkel defect leads of colour in ionic solids due to the presence of F-centers.
Choose the most appropriate answer for the statements from the options given below:
पर्याय
Statement I is false but statements II is true.
Both Statement I and statements II are true.
Both Statement I and statements II are false.
Statement I is true but statement II is false.
MCQ
उत्तर
Statement I is true but statement II is false.
Explanation:
F-centre is a point in a crystalline compound at which negative ion is missing from its crystal lattice and it is replaced by an electron. It is seen in metal excess defect due to which colour is imparted.
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