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CsCl crystallizes in body centred cubic ...

`CsCl` crystallizes in body centred cubic lattice .If `'a'` is its edge length then which of the following expression is correct?

A

`r_(Ca^(+)) + r_(Cr^(-)) = 3a`

B

`r_(Ca^(+)) + r_(Cr^(-)) = (3a)/(2)`

C

`r_(Ca^(+)) + r_(Cr^(-)) = (sqrt(3))/(2)a`

D

`r_(Ca^(+)) + r_(Cr^(-)) = sqrt(3a)`

Text Solution

Verified by Experts

`2 (r_(cg) oplus + r_(Cl) oplus ) = sqrt(3)a`
B = `(1)/(2) xx 6 = 3`
(face centre ) `therefore " " AB_(3)`
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