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In a compound ,atoms of element Y from c...

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

A

`X_(3)Y_(4)`

B

`X_(4)Y_(3)`

C

`X_(2)Y_(4)`

D

`X_(2)Y`

Text Solution

Verified by Experts

The correct Answer is:
B
Let number of atoms of Y used in packing `=n`
Number of tetrahedral voids `=2n`
Number of atoms of `X=(2)/(3)xx2n=(4)/(3)n`
`Y:X=n:(4)/(3)n=3:4`
Formula of compound `=X_(4)Y_(3)`
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