Sarthaks Test
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The Mn3+ ion is unstable in solution and undergoes disproportionation to give Mn2+, MnO2, and H+ ion. Write a balanced ionic equation for the reaction. 

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1 Answer

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The given reaction can be represented as: 

The oxidation half equation is: 

The oxidation number is balanced by adding one electron as: 

The charge is balanced by adding 4H+ ions as: 

The O atoms and H+ ions are balanced by adding 2H2O molecules as: 

The reduction half equation is: 

The oxidation number is balanced by adding one electron as: 

The balanced chemical equation can be obtained by adding equation (i) and (ii) as: 

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