Redox Reactions...

The oxidation state of $$I$$ in $${H_4IO}_6^{-}$$ is :

The oxidation number of $$Ni$$ in $$K_4[Ni(CN)_4]$$ is :

Maximum oxidation state is present in :

When $$SO_2$$ is passed in a solution of potassium iodate, the oxidation state of iodine changes from :

The oxidation number of phosphorus in Ca(H2PO2)2Ca(H2PO2)2 is:

Which process is not involved in the reaction?

Oxidation number of P in $$P_2O^{4-}_7 $$ is :

On combustion of $$CH_4$$ to $$CO_2$$ and $$H_2$$, the oxidation number of carbon changes by :

The oxidation number of Pt in $$[Pt(C_2H_4)Cl_3]^-$$ is :

Among the following, identify the species with an atom in $$+4$$ oxidation state.