1.

For an ionic crystal of the general formula AX and co- ordination no. 6, the radius ratio value will be

Answer»

`gt0.73`
between 0.732 and 0.414
between 0.41 and 0.22
`lt 0.22`

SOLUTION :AX is LIKE Nacl structure so OCCUPYING octahedral VOIDS `(r_(+))/(r_(-))=0.414-0.732`


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