Question

Assertion: Frenkel defect doesn’t have any effect on density of the crystal.

Reason: Dislocated cation occupies the interstitial site

• A. 1 is correct, 2 is correct and 2 is correct explanation of 1
• B. 1 is correct, 2 is correct and 2 is not correct explanation of 1
• C. 1 is correct, 2 is wrong
• D. 1 is wrong, 2 is correct

Answer 1

The correct option is A

1 is correct, 2 is correct and 2 is correct explanation of 1

In frenkel defect, only the position of cation changes, it doesn’t miss from the crystal, it just occupies the interstitial site. So Statement 2 is correct.

As the number of particles in the crystal is not changing, there shouldn’t be having any effect on density. So statement 1 is correct and statement 2 is correct explanation of statement 1.