Assertion (A) : in `CsCl` crystal, `Cs^(o+)` ions asopt bcc arragement.
Reason (R ) : For `N` atoms adopting bcc arragement, there are `2N TVs`.

Options

A. If both `(A)` and `(R)` are correct, and `(R)` is the correct explanation of `(A)`
B. If both `(A)` and `(R)` are correct, but `(R)` is not the correct explanation of `(A)`
C. If `(A)` is correct, but `(R)` is incorrect.
D. If both `(A)` is incorrect, but `(R)` is correct.

Answer

C

Explanation

(A) is correct but (R) is wrong.
Correct (R): For `N` atoms adopting fcc arrangement, there are `2NTVs`.