Which of the following statements are INCORRECT?

A. All the transition metals except scandium form MO oxides which are ionic.

B. The highest oxidation number corresponding to the group number in transition metal oxides is attained in $$\mathrm{Sc}_{2} \mathrm{O}_{3}$$ to $$\mathrm{Mn}_{2} \mathrm{O}_{7}$$.

C. Basic character increases from $$\mathrm{V}_{2} \mathrm{O}_{3}$$ to $$\mathrm{V}_{2} \mathrm{O}_{4}$$ to $$\mathrm{V}_{2} \mathrm{O}_{5}$$.

D. $$\mathrm{V}_{2} \mathrm{O}_{4}$$ dissolves in acids to give $$\mathrm{VO}_{4}^{3-}$$ salts.

E. $$\mathrm{CrO}$$ is basic but $$\mathrm{Cr}_{2} \mathrm{O}_{3}$$ is amphoteric.

Choose the correct answer from the options given below:

Given below are two statements :

Statement I : Cr²⁺ is oxidising and Mn³⁺ is reducing in nature.

Statement II : Sc³⁺ compounds are repelled by the applied magnetic field.

In the light of the above statements, choose the most appropriate answer from the options given below :

The incorrect statement among the following is :

Which of the following reactions is the metal displacement reaction? Choose the right option.