Q 1115245160.     The arrangement of `X^-` ions around `A^-` ion in solid `AX` is given in the figure (not drawn to scale).If the radius of `X^- `is `250` pm, the radius of `A^-` is

JEE 2014 Mains Paper 2
A

`104` pm

B

`125` pm

C

`183` pm

D

` 57` pm

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