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The edge length of fcc unit cell is 610 ...

The edge length of fcc unit cell is `610` pm. If the radius of the cation is `128` pm the radius of the anion is ______

A

`177` pm

B

`354` pm

C

`482` pm

D

`738` pm

Text Solution

Verified by Experts

The correct Answer is:
A
For fcc unit cell, edge length `=2(r_(a)+r_(c))` ltbgt i., `610==2(128+ r_(a)) :. r_(a)=177`
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