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Assertion (A) : in CsCl crystal, Cs^(o+)...

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

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