In these questions, a statement of Assertion followed by a statement of Reason is given. Choose the correct answer out of the following choices.
Assertion (A): AgCl shows Frenkel defect while NaCl does not.
Reason (R): Frenkel defect is shown when anionic vacancies are occupied by unpaired electrons.

Options

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 the correct explanation of A
C. A is true but R is false
D. A is false and R is True

Answer

B

Explanation

AgCl shows Frenkel defect while NaCl does not as the size of Ag ion is smaller than `Na^+` ion dislocates from its normal site to an interestitial site.