Assertion :Due to Frenkel defect, there is no effect on the density of the crystalline solid. Reason: In Frenkel defect, no cation or anion leaves the crystal.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Assertion is incorrect but Reason is correct

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

A Frenkel defect is a type of defect in crystalline solids wherein an atom is displaced from its lattice position to an interstitial site, creating a vacancy at the original site and an interstitial defect at the new location within the same element without any changes in chemical properties.

No cation are anion are leaving the crystal. Only the cation is moving from one place to another place within the crystal. So the density of crystalline solid will not change.

Reason is the correct explanation for assertion.

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