Use of Super script and Sub script in MS Word

Use of super script and sub script in MS Word:

Super Script: a²+b³
1)      Type a2+b3

      2)     Now select 2, you can select both 2 and 3 using Ctrl

      3)     Now press “Super Script” Button on Home Tabà Font Group

Sub Script: H₂SO₄

      1)      H2SO4

      2)      Select 2 and 4 using ctrl

      3)     Now Press “ Sub Script” button on Home Tabà Font Group