1.

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

Answer»

`((100)/(0.414))`
`((0.732)/(100))`
`100xx0.414`
`((0.414)/(100))`

Solution :HINT : For an FCC STRUCTURE `(r_(X^(+)))/(r_(y^(-)))=0.414`
GIVEN that `r_(X^(+))="100 PM "r_(y^(-))=("100 pm")/(0.414)`


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