NEET UG CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

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The order of stability of metal oxides is

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Correct option: C

\mathrm{F}{\mathrm{e}_2}{\mathrm{O}_3} < C{\mathrm{r}_2}{\mathrm{O}_3} < A{\mathrm{l}_2}{\mathrm{O}_3} < MgO

Option C (

\mathrm{F}{\mathrm{e}_2}{\mathrm{O}_3} < C{\mathrm{r}_2}{\mathrm{O}_3} < A{\mathrm{l}_2}{\mathrm{O}_3} < MgO

) is correct because the stability of metal oxides generally increases with the electropositivity of the metal.

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