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A compound MpXq has cubic close packing ...

A compound `M_pX_q` has cubic close packing (ccp) arrangement of X. Its unit cell structure shown below . The empirical formula of the compound is

A

MX

B

`MX_(2)`

C

`M_(2)X`

D

`M_(5)X_(14)`

Text Solution

Verified by Experts

The correct Answer is:
B
`"No. of M atoms" = underset(("Edge centre"))(4times1/4) + underset(("Body centre"))1=2`
`"No. of atom" = underset("corners")(8times1/8)+underset("face centre")(6times1/2)=4`
`therefore "unit formula" = M_(2)X_(4)`
`therefore "empirical formula" = MX_(2)`
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