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A binary solid (A^(+)B^(-)) has a ruck s...

A binary solid `(A^(+)B^(-))` has a ruck salt structure. If the edge length is 400pm and radius of cation is 75pm the radius of anion is

A

100pm

B

125pm

C

250pm

D

325pm

Text Solution

Verified by Experts

The correct Answer is:
2
Edge length `(a)=2(r_(c)+r_(a))`
`2r_(a)=a-2r_(c),r_(a)=(a-2r_(c))/(2)`
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