Select the correct statement(s) with respect to oxides and …

Chemistry D and F - Block Elements General Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 14, 2026

Select the correct statement(s) with respect to oxides and oxoanions of transition metals.

Among oxides of chromium, CrO is basic, Cr 2 O 3 is amphoteric and CrO 3 is acidic.

No higher oxides of iron above Fe 2 O 3 are found.

Ti,V,Cr and Mn form oxides MO and their correct increasing order of acidic character is MnO<CrO<VO<TiO.

Vandium(V) oxide does not react with acids but reacts with alkalies only.

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(a,b)

and statements are correct. These statements are factual.

Along the period, the electronegativity of metals decreases and therefore the difference of electronegativities between metal and oxygen decreases. Hence, the acidic character increases, so the correct order is TiO < VO < CrO < MnO.

V 2 O 5 reacts with alkalies as well as acids to give VO 4 3– and VO 2 + respectively.

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