Determine the oxidation number of the marked elements in the following componds
`[overset(**)Fe(H_(2)O)_(5)(NO)]SO_(4)`

Explanation

`"["overset(**)Fe(H_(2)O_(5)(NO)]SO_(4)`:Let the oxidation number of Fe=x.
`H_(2)O`is a netural molecule and `NO^(+)` is a postiviely charged ion.
`therefore underset(("For"H_(2)O))(x+5xx0)underset(("For"NO^(+)))(+1+)underset(("For"SO_(4)^(2-)))(1xx(-2)=0)therefore=+1`
Therefore ,oxidation number of fe in `[Fe(H_(2)O_(5)(NO)]SO_(4)`