A solid compound PQ has CsCI structure. If the radius of cation is 120 pm then find radius of anion ?

Options

A. 88 pm
B. 140 pm
C. 164 pm
D. 120 pm

Answer

C

Explanation

`CsCIto"cation in cation in cubic void"`
`(r^(+))/(r^(-))=0.732`
`r^(-)=(120)/(0.732)=164 "pm"`