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In a face centered cubic arrangement of ...

In a face centered cubic arrangement of A and B atoms whose A atoms are at the corner of the unit cell and B atoms at the face centers. One of the B atoms missing from one of the face in unit cell. The simplest formula of compounding is:

A

`AB_(3)`

B

`A_(8)B_(5)`

C

`A_(2)B_(5)`

D

`AB_(2//5)`

Text Solution

Verified by Experts

The correct Answer is:
C
A face centred atom contributes 1/2 atom in one unit cell. Therefore, missing one B atoms give the formula `AB_(2//5)orA_(2)B_(5)`
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