Question

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.

(a) Both A and R are true and R is the correct explanation of A

(b) Both A and R are true but R is not correct explanation of A

(c) A is true but R is false

(d) A and R are false

Answer 1

Correct option (a) Both A and R are true and R is the correct explanation of A

Explanation:

In a Frenkel defect an ion leaves its position in the lattice and occupies normally vacant interstitial position.