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Question

Which d-block element in period 4 forms a compound with oxygen exhibiting the highest oxidation state of +7?

Options

Choose one · Correct answer highlighted

Explanation

In period 4 d-block (Sc to Zn), Mn (group 7) achieves a +7 oxidation state in Mn₂O₇, unlike Cr (+6), Fe (+3), or Co (+3).