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TS EAMCET 7 May 2018 Shift 1 Solved Paper
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© examsnet.com
Question : 142
Total: 160
A compound having elements X and Y crystalises in a cubic structure, where X is at the comer position and Y is at the enter of the cube. The collect formula of the compound is
XY
X
3
Y
X
Y
2
X
Y
3
Validate
Solution:
Number of X-atoms per unit cell (at corner) is equal to
8
8
=
1
atom
Number of Y-atoms per unit cell (at center) is equal to
1
.
Hence, the formula will be
X
Y
.
© examsnet.com
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