What is meant by 'disproportionation'? Give two examples of disproportionation reactions in aqueous solution.
(N/A) disproportionation reaction is a special type of redox reaction in which a species in a particular oxidation state is simultaneously oxidized and reduced.
Examples in aqueous solution:
$(i)$ $3CrO_4^{3-} + 8H^{+} \to 2CrO_4^{2-} + Cr^{3+} + 4H_2O$
Here,$Cr(V)$ is oxidized to $Cr(VI)$ and reduced to $Cr(III)$.
$(ii)$ $3MnO_4^{2-} + 4H^{+} \to 2MnO_4^{-} + MnO_2 + 2H_2O$
Here,$Mn(VI)$ is oxidized to $Mn(VII)$ and reduced to $Mn(IV)$.
Examples in aqueous solution:
$(i)$ $3CrO_4^{3-} + 8H^{+} \to 2CrO_4^{2-} + Cr^{3+} + 4H_2O$
Here,$Cr(V)$ is oxidized to $Cr(VI)$ and reduced to $Cr(III)$.
$(ii)$ $3MnO_4^{2-} + 4H^{+} \to 2MnO_4^{-} + MnO_2 + 2H_2O$
Here,$Mn(VI)$ is oxidized to $Mn(VII)$ and reduced to $Mn(IV)$.
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Which of the following ionic or molecular species does not disproportionate in water at room temperature?
Medium
View SolutionWhat is meant by 'disproportionation' of an oxidation state? Give an example.
Easy
View SolutionObserve the following reaction:
$Cl_{2(g)} + 2OH^{-}_{(aq)} \rightarrow ClO^{-}_{(aq)} + Cl^{-}_{(aq)} + H_2O_{(l)}$
Identify the correct statements about this reaction:
$I$. $Cl_{2(g)}$ is oxidized to $ClO^{-}_{(aq)}$
$II$. $Cl_{2(g)}$ is oxidized to $Cl^{-}_{(aq)}$
$III$. $Cl_{2(g)}$ is reduced to $ClO^{-}_{(aq)}$
$IV$. $Cl_{2(g)}$ is reduced to $Cl^{-}_{(aq)}$
The correct answer is:
$Cl_{2(g)} + 2OH^{-}_{(aq)} \rightarrow ClO^{-}_{(aq)} + Cl^{-}_{(aq)} + H_2O_{(l)}$
Identify the correct statements about this reaction:
$I$. $Cl_{2(g)}$ is oxidized to $ClO^{-}_{(aq)}$
$II$. $Cl_{2(g)}$ is oxidized to $Cl^{-}_{(aq)}$
$III$. $Cl_{2(g)}$ is reduced to $ClO^{-}_{(aq)}$
$IV$. $Cl_{2(g)}$ is reduced to $Cl^{-}_{(aq)}$
The correct answer is:
The reaction occurring when $Cl_2$ gas is passed through a concentrated solution of $NaOH$ is called .....
Easy
View SolutionTotal number of species from the following which can undergo disproportionation reaction . . . . . . .
$H_2O_2$,$ClO_3^{-}$,$P_4$,$Cl_2$,$Ag$,$Cu^{+}$,$F_2$,$NO_2$,$K^{+}$
$H_2O_2$,$ClO_3^{-}$,$P_4$,$Cl_2$,$Ag$,$Cu^{+}$,$F_2$,$NO_2$,$K^{+}$
DifficultJEE MAIN 2024
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