JEE Main 2023 — Some Basic Concepts Of Chemistry Question with Solution

When $$\mathrm{F}{\mathrm{e}}_{0.93}\mathrm{O}$$ is heated in presence of oxygen, it converts to $$\mathrm{F}{\mathrm{e}}_2{\mathrm{O}}_3$$. The number of correct statement/s from the following is ________

A. The equivalent weight of $$\mathrm{F}{\mathrm{e}}_{0.93}\mathrm{O}$$ is $$\frac{\mathrm{Molecular}\mathrm{weight}}{0.79}$$

B. The number of moles of Fe$${}^{2+}$$ and Fe$${}^{3+}$$ in 1 mole of $$\mathrm{F}{\mathrm{e}}_{0.93}\mathrm{O}$$ is 0.79 and 0.14 respectively

C. $$\mathrm{F}{\mathrm{e}}_{0.93}\mathrm{O}$$ is metal deficient with lattice comprising of cubic closed packed arrangement of O$${}^{2-}$$ ions

D. The % composition of Fe$${}^{2+}$$ and Fe$${}^{3+}$$ in $$\mathrm{F}{\mathrm{e}}_{0.93}\mathrm{O}$$ is 85% and 15% respectively