Question

Ferrous oxide has a cubic structure and each edge of the unit cell is $5.0$. Assuming density of the oxide as $4.0g/c{m^{ - 3}}$ then the number of ${\rm{F}}{{\rm{e}}^{2 + }}$ and ${{\rm{O}}^{2 - }}$ ions present in each unit cell will be

Accepted Answer

Four ${\rm{F}}{{\rm{e}}^{2 + }}$ and Four ${{\rm{O}}^{2 - }}$

Answer

Two ${\rm{F}}{{\rm{e}}^{2 + }}$ and four ${{\rm{O}}^{2 - }}$

Answer

Three ${\rm{F}}{{\rm{e}}^{2 + }}$ and three ${{\rm{O}}^{2 - }}$

Answer

Four ${\rm{F}}{{\rm{e}}^{2 + }}$ and two ${{\rm{O}}^{2 - }}$

NEET UG CHEMISTRY MCQ: SOLID STATE

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