Chemistry Question on Classical Idea Of Redox Reactions – Oxidation And Reduction Reactions

Question

The highest oxidation state shown by Mn is:

Answer 1

Solution

${}_{25}Mn$ has electronic configuration $=1{{s}^{2}},2{{s}^{2}}2{{p}^{6}},3{{s}^{2}}3{{p}^{6}}3{{d}^{5}},4{{s}^{2}}.$ It can show + 7 oxidation state by loosing all the seven electrons in 3d and 4s-sub-shells.