In a face centered lattice of X and Y, X atoms are present at the comers while Y atoms are at face centers. Then the formula of the compound would be if two atoms of X are missing from the comers:

In a face centered lattice of X and Y, X atoms are present at the come

1.	In a face centered lattice of X and Y, X atoms are present at the comers while Y atoms are at face centers. Then the formula of the compound would be if two atoms of X are missing from the comers:
A.	\[{{X}_{4}}\]Y
B.	\[{{X}_{3}}\]\[{{Y}_{4}}\]
C.	X\[{{Y}_{4}}\]
D.	\[{{X}_{2}}\]\[{{Y}_{4}}\]
Answer» D. \[{{X}_{2}}\]\[{{Y}_{4}}\]

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In a face centered lattice of X and Y, X atoms are present at the comers while Y atoms are at face centers. Then the formula of the compound would be if two atoms of X are missing from the comers:

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