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Standard XII
Chemistry
Types of Unit Cell
Number of uni...
Question
Number of unit cells in 4g of X(atomic mass = 40) which crystalizes in B.C.C. pattern is (N = Avogadro Number)
A
0.1
N
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B
2
×
0.1
N
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C
0.1
N
2
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D
2
N
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Solution
The correct option is
C
0.1
N
2
40g = N atoms
4g = 0.1 N atoms
2 atoms form 1 unit cell in B.C.C
0.1 N atoms =
0.1
N
2
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