Give reasons:

Mn shows the highest oxidation state of +7 with oxygen but with fluorine it shows the highest oxidation state of +4

Mn shows the highest oxidation state of +7 with oxygen because it can form ppi-dpi multiple bonds using 2p orbital of oxygen and 3d orbital of Mn. On the other hand, Mn shows the highest oxidation state of +4 with fluorine because it can only form a single bond.