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If the radius of Br^(-) ion is 0.182 nn,...

If the radius of `Br^(-)` ion is 0.182 nn, how large can a cation be fit in its tetrahedral holes ?

A

0.414 pm

B

0.0753 pm

C

0.091 nm

D

0.225 pm

Text Solution

Verified by Experts

The correct Answer is:
B
For tetrahedral void,
`(r_(+))/(r_(-))=0.225-0.414`
`r_(+)=0.414xxr_(-)`
`=0.414xx0.182` nm
`=0.0753` nm
`therefore` The cation of radius 0.0753 nm (maximum) can fit into each tetrahedral void.
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