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A substance A(x)B(y) crystallizes in a ...

A substance `A_(x)B_(y)` crystallizes in a face-centred cubic lattice in which atoms A occupy the centres of each face of the cube and B occupy each corner of the cube. Identify the correct composition of the substane

A

`AB_(3)`

B

`A_(2)B_(3)`

C

`A_(3)B`

D

`cannot be specified

Text Solution

Verified by Experts

A atoms : `(1)/(2) xx 6 = 3 ` (centre of each face)
B atoms : `(1)/(8) xx 8 = 1 `(corners)
Formula : `A_(3)B`
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