Solid StateHard

Question

For an Ionic solid of the general formula AB and coordination number 6, the value of the radius ratio will be

Options

A.less than 0.225
B.in between 0.225 and 0.414
C.between 0.414 and 0.732
D.greater than 0.732

Solution

Ionic solid having C.N. = 6 cation in octahedral holes.
Hence, 0.414 < < 0.732

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