What sort of information can you draw from the following reaction?
$(CN)_{2(g)} + 2OH_{(aq)}^{-} \to CN_{(aq)}^{-} + CNO_{(aq)}^{-} + H_2O_{(l)}$
$(CN)_{2(g)} + 2OH_{(aq)}^{-} \to CN_{(aq)}^{-} + CNO_{(aq)}^{-} + H_2O_{(l)}$
(N/A) To analyze the reaction,we calculate the oxidation number of $C$ in $(CN)_2$,$CN^-$,and $CNO^-$:
$1$. In $(CN)_2$: $2(x - 3) = 0 \implies x = +3$
$2$. In $CN^-$: $x - 3 = -1 \implies x = +2$
$3$. In $CNO^-$: $x - 3 - 2 = -1 \implies x = +4$
In the given reaction,the oxidation state of carbon changes from $+3$ to $+2$ (reduction) and $+3$ to $+4$ (oxidation).
Since the same element $(C)$ is simultaneously oxidized and reduced,this is a disproportionation reaction. Thus,the dissolution of cyanogen in a basic medium is a disproportionation reaction.
$1$. In $(CN)_2$: $2(x - 3) = 0 \implies x = +3$
$2$. In $CN^-$: $x - 3 = -1 \implies x = +2$
$3$. In $CNO^-$: $x - 3 - 2 = -1 \implies x = +4$
In the given reaction,the oxidation state of carbon changes from $+3$ to $+2$ (reduction) and $+3$ to $+4$ (oxidation).
Since the same element $(C)$ is simultaneously oxidized and reduced,this is a disproportionation reaction. Thus,the dissolution of cyanogen in a basic medium is a disproportionation reaction.
Explore More
Similar Questions
Which one of the following is a disproportionation reaction?
$MnO_4^{2-}$ undergoes a disproportionation reaction in an acidic medium,but $MnO_4^{-}$ does not. Give a reason.
Medium
View SolutionWhich of the following are disproportionation reactions?
$(A)$ $Cl_2 + 2 NaOH \rightarrow NaCl + NaOCl + H_2O$
$(B)$ $2 H_2O_2 \rightarrow 2 H_2O + O_2$
$(C)$ $2 KMnO_4 \rightarrow K_2MnO_4 + MnO_2 + O_2$
$(D)$ $3 MnO_4^{2-} + 4 H^+ \rightarrow 2 MnO_4^- + MnO_2 + 2 H_2O$
$(A)$ $Cl_2 + 2 NaOH \rightarrow NaCl + NaOCl + H_2O$
$(B)$ $2 H_2O_2 \rightarrow 2 H_2O + O_2$
$(C)$ $2 KMnO_4 \rightarrow K_2MnO_4 + MnO_2 + O_2$
$(D)$ $3 MnO_4^{2-} + 4 H^+ \rightarrow 2 MnO_4^- + MnO_2 + 2 H_2O$
Which of the following reactions is $NOT$ a disproportionation reaction?
Medium
View SolutionIn the following reaction,$3Br_2 + 6CO_3^{2-} + 3H_2O \rightarrow 5Br^{-} + BrO_3^- + 6HCO_3^-$,what happens to bromine?
Easy
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo