Question

What is meant by disproportionation? give two examples of disproportionate reaction in aqueous solution?

Answer 1

Disproportionation is a chemical reaction, typically a redox reaction, where a molecule is transformed into two or more dissimilar products. In a redox reaction, the species is simultaneously oxidized and reduced to form at least two different products.

(1)3Cro4- + 8H+ -------2CrO42- + Cr+3 + 4H2O
(2)3MnO42- +4H+ --------2MnO4- +MnO2 +2H2O.

Answer 2

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Here is your answer

the reaction in which same element undergoes both oxidation and reduction is called disproportionation reaction

Ex: 2 H2O2---------»2 H20 +O2