The reaction 3ClO2– (aq)→ClO3–(aq) + 2Cl–(aq) is an example of
Oxidation reaction
Reduction reaction
Disproportionation reaction
Decomposition reaction
3ClO2– →(aq)ClO3–(aq) + 2Cl–(aq) in this reaction Cl undergo oxidation and reduction hence it is called disproportionation reaction