A solid XY has NaCl structure. If radius...

A solid XY has NaCl structure. If radius of `X^(+)` is 100 pm, then the radius of `Y^(–)` ion will be:

A

120 pm

B

136.6 to 241.6 pm

C

280 pm

D

Unpredictable

Verified by Experts

The correct Answer is:

B

From the radius ratio limit for NaCl type crystal i.e., `0.414-0.732`calculate the `r^(-)` for two limiting values.

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