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The unit cell of a binary compound of A ...

The unit cell of a binary compound of A and B has ccp structure with A atoms occupying the corners and B atoms occupying the centres of each face of the unit cell. If during crystallisation of the alloy, in the unit cell 4 atoms of A are missing, the overall composition per unit cell is :

A

`AB_(6)`

B

`AB_(4)`

C

`AB_(8)`

D

`A_(6)B_(24)`

Text Solution

Verified by Experts

The correct Answer is:
B
Number of atoms of `A=6xx1//8=3//4`
Number of atoms of `B=6xx1//2=3`
`A:B=3//4:3=3:12`
Composition of Alloy `=AB_(4)`
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