1.

In a compound, atoms of element Y form ccp lattice and those element X occupy 2/3 of tetrahedral voids. The formula of a compound will be …….

Answer»

`X_4Y_3`
`X_2Y_3`
`X_2Y`
`X_3Y_4`

Solution :NUMBER of Y ATOMS = 4
Number of tetrahedral voids = 8
Number of X- atoms = `8 xx2/3`
RATIO of X atoms to Y atoms.
`X : Y= 16/3 : 4 = 4 : 3 implies X_4Y_3`.


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