Which of the following statements are INCORRECT? A. The highest oxidation state of manganese in its fluorides is +7 as in MnF ₇ . B. The ability of oxygen to stabilize high oxidation states of transition metals exceeds that of fluorine. C. All copper(II) halides are known except the iodide. D. Copper(I) compounds are highly stable in aqueous solutions and do not undergo disproportionation. E. The highest oxidation st

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Statement A is incorrect. The highest oxidation state of manganese in its fluorides is +4 as in MnF ₄ . The +7 oxidation state is not observed in simple fluorides, though it is found in oxides like Mn ₂ O ₇ and oxofluorides like MnO ₃ F . Statement B is correct. The ability of oxygen to stabilize high oxidation states exceeds that of fluorine because oxygen can form multiple bonds with transition metals. Statement C is correct. All copper(II) halides are known except copper(II) iodide ( CuI ₂ ). This is because Cu