1.

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

Answer»

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

Solution :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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