Redox reaction

Addition of oxygen to an element or a compound is termed as

The redox reaction among the following is :

Find the oxidation number of Cl in $\mathrm{ClO}_{4}^{-1}$

Which of the following is the strongest oxidizing agent?

What is oxidation number of sulphur in $\mathrm{SO}_{3}$ ?

What is the oxidation number of Mn in $\mathrm{MnO}_{4}^{-}$?

What is oxidation number of S in $\mathrm{SO}_{3}^{2-}$ ?

When a metal ion $M^{3+}$ loses 3 electrons, its oxidation number will be

The oxidation state of potassium in $KO_{2}$ is

Oxidation states of $P$ in $H_{4}P_{2}O_{5},H_{4}P_{2}O_{6},H_{4}$ $P_{2}O_{7}$ are respectively

What is oxidation state of chlorine in chlorous acid?

Identify oxidation number of Sulphur respectively in $\mathrm{SO}_{2}$ and $\mathrm{SO}_{4}^{2-}$.

What is the oxidation number of carbon in oxalic acid ?

What is the oxidation state of Xe in $\mathrm{XeOF}_{4}$ ?

What is the oxidation number of Cl in $\mathrm{HOClO}_{2}$ ?