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Assertion. No compound has both Schottky...

Assertion. No compound has both Schottky and Frenkel defects.
Reason. Both defects change the density of the soild .

A

If both assertion and reason are true, and reason is the true explanation of the assertion.

B

If both assertion and reason are true, but reason is not the true explanation of the assertion.

C

If assertion is true , but reason is false

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
D
Correct A. Some compounds may have both Schottky and Frenkel defects (e.g., AgBr)
Correct R. Schottky defect lowers the density while Frenkel defect does not .
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In Frenkel defect

Assertion :No compound has both schottky and frenkel defect Reason : schottky defect change the density of the solid

Which has Frenkel defect ?

Schottky defect.

In what way, do Schottky and Frenkel defects differ from each other ?

Assertion (A) Both Frenkel and Schottky defects are stoichiometric defects. Reason (R ) Both defects change the density of the crystalline solid.

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