Crystalline solid AB has face-centred cu...

Crystalline solid AB has face-centred cubic unit cell. Corners and the face centres of unit cell are occupied by atoms A. The edge centres and body centre of the unit cell are occupied by atoms B. If all the face-centred atoms along one of the axes are removed, then resulting chemical formula of the solid will become-

`A_(4)B_(3)`

`A_(2)B_(3)`

`A_(3)B_(4)`

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