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 Sc2O3 to Mn2O7.C. Basic character increases from V2O5 to V2O3.D. V2O5 dissolves in acids to give VO43− salts.E. CrO is basic but Cr2O3 is amphoteric.
medium
The d and f Block Elements
2023
chemistry
A and E only
B and D only
C and D only
B and C only
Explanation
To solve this problem, we need to analyze each statement to determine which are incorrect.Statement A: "All the transition metals except scandium form MO oxides which are ionic."• This statement is incorrect because not all transition metal oxides are purely ionic. Some have covalent character.Statement B: "The highest oxidation number corresponding to the group number in transition metal oxides is attained in Sc2O3
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