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A solid compound XY has NaCl structure. ...

A solid compound XY has NaCl structure. If the radius of the cation is 100 pm, the radius of the anion (Y) will be

A

275.1 pm

B

322.5 pm

C

241.5 pm

D

165.7 pm

Text Solution

Verified by Experts

The correct Answer is:
C
In NaCl, Cl' ion from ccp and `Na^(+)` ions occupy octahedral voids.
`r^(+)//r=0.414 or 100/r=0.414 ,`
`r^(-)=(100"pm")/0.414=241.5 " pm"`
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