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

A solid `XY` has `NaCl` structure. If radius of `X^(+)` is `100 p m`. What is the radius of `Y^(-)` ion ?

A

`120 p m`

B

`136.6 t o 241.6 p m`

C

`136.6 p m`

D

`241.6 p m`

Text Solution

Verified by Experts

The correct Answer is:
b
The `(r^(+))/(r^(-))` for `NaCl=0.414 ` to `0.732`
`(` due to `f.c.c.` structure `)`
`:. R^(-)=241.54` to ` 136.6 p m`
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