A compound MpXq has cubic close packing (ccp) arrangement of X. Its unit cell structure is shown in the above figure. The empirical formula of the compound is:
A
MX
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B
MX2
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C
M2X
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D
M5X14
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Solution
The correct option is DMX2 MpXq has ccp structure. Therefore, number of atoms of X=8×18+6×12=4 Number of atoms of M=4×14+1=2 So, the unit cell formula of the compound is M2X4 and the empirical formula of the compound is MX2.