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Q.

An element (atomic mass 100 g/mol) having bcc structure has unit cell edge 400 pm. Then density of the element is

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a

10.376 g/cm3

b

2.144 g/cm3

c

7.289 g/cm3

d

5.188 g/cm3

answer is D.

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Detailed Solution

ρ=n×Ma3×N0×10−30=2×100(400)3×6.02×1023×10−30= 5.188 g / cm3
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