Explain the term disproportionation reaction.

In a disproportionation reaction, the same element is simultaneously oxidized and reduced.

Definition

The reactions in which a single reactant is oxidized and reduced is known as Disproportionation reactions

The disproportionation reaction is given below

2Hโ‚‚Oโ‚‚ โ†’ 2Hโ‚‚O + Oโ‚‚

is also a disproportionation reaction because O is reduced in forming Hโ‚‚O and oxidized in forming Oโ‚‚

Examples

Listed below are the examples ofย  disproportionation reaction

  • P4 + 3NaOH + 3H2O โ†’ 3NaH2PO2 + PH3
  • Cl2(g) + H2O (l)ย  โ†’HCl (aq)+ HClO(aq)
  • 2CuBr โŸถ CuBr2+ Cu

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