A) \[\frac{{{a}^{3}}\times {{N}_{o}}}{N\times M}g\,c{{m}^{-3}}\]
B) \[\frac{N\times M}{{{a}^{3}}\times {{N}_{o}}}g\,c{{m}^{-3}}\]
C) \[\frac{{{a}^{3}}\times M}{N\times {{N}_{o}}}g\,c{{m}^{-3}}\]
D) \[\frac{M\times {{N}_{o}}}{{{a}^{3}}\times N}g\,c{{m}^{-3}}\]
Correct Answer: B
Solution :
Density of unit cell \[=\frac{N\times \text{mol}\,\text{.}\,\text{wt}.(M)}{V(={{a}^{3}})\times \text{avogadro}\,\,\text{no}\text{.}\,({{N}_{o}})}g\,c{{m}^{-3}}\]
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