If the relative atomic mass of an element is not a whole number, it can be deduced that the element is?

MnO4(aq) + 8H + 5Fe2+ \(\to\) Mn2+(aq) + 5Fe3+(aq) + H2O. The oxidation number of maganese in the above reaction changed from

which of these metals CANNOT replace hydrogen from alkaline solutions?

When sodium ethanoate is treated with a few drops of concentrated tetraoxosulphate(vi)acid. one of the products is