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VITEEE 2018 Solved Paper
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© examsnet.com
Question : 61
Total: 125
In a compound, atoms of element Y form ccp lattice and those of element X occupy 2/3 rd of tetrahedral voids. The formula of the compound will be
X
4
Y
3
X
2
Y
3
X
2
Y
X
3
Y
4
Validate
Solution:
From the given data, we have
Number of Y atoms in a unit cell = 4
Number of X atoms in a unit cell
= 8 ×
2
3
=
16
3
From the above we get the formula of the compound as
X
16
∕
3
Y
4
or
X
4
Y
3
© examsnet.com
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