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 Sc2āO3ā to Mn2āO7ā.C. Basic character increases from V2āO5ā to V2āO3ā.D. V2āO5ā dissolves in acids to give VO43āā salts.E. CrO is basic but Cr2āO3ā 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."ā¢ 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 Sc2āO3ā
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