1.

An ionic compound has unit cell consisting A ions at the corners of a cube and B ions on the centres of the faces of cube. The empirical formula of compound would be ....

Answer»

`A_3B`
`AB_3^(-)`
`A_2B`
`AB`

Solution :Total number of A ions `= ( 8 XX 1/8) = 1`
Total number of B ions `= (6 xx 1/2) = 3`
`THEREFORE A:B = 1:3`


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