1.

which of the following is not true about the ionic solids ?

Answer»

Bigger IONS from the close packed structure
Smaller ions occupy either the tetrahedral or the octahedral VOIDS depending upon their size
Occupation of all the voids is not necessary
The fraction of octahedral or tetrahedral voids occupied DEPENDS upon the radii of the ions occupying the voids .

Solution :Tetrahedral voids are ALWAYS double than octahedral voids. Hence (d) is not TRUE.


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