Match the statements given in Column I with the oxidation states given in Column and mark the correct option.

Column I Column II
A.  Oxidation state of Mn in  \(\mathrm{MnO}_2\)  is 1.  +2
B.  Most stable oxidation state of Mn is 2.  +3
C.  Most stable oxidation state of Mn in oxides is 3.  +4
D.  Characteristic oxidation state of lanthanoids is 4.  +5
5.  +7

    

Options: 
1.  2 3 4 1
2.  3 1 5 2
3.  5 4 3 2
4.  4 5 3 2
Hint: Mn is 3d element and the most stable oxidation state is +2
A. Oxidation state of Mn MnO2 in  is + 4.
B. Most stable oxidation state of Mn is +2 because Mn2+ has a stable configuration that is 3d5.
C. Most stable oxidation state of Mn in oxides is +7.
D. Characteristic oxidation state of lanthanoids is +3.