1.

What sorts of informations can you draw from the following reaction ? (CN)_(2(g))+2OH_((g))^(-)toCN_((aq))^(-)+CNO_((aq))^(-)+H_(2)O_((l))

Answer»

Solution :Oxidation number of C in `(CN)_(2),CN^(-)andCNO^(-)` is given below :

In a given reaction oxidation number of C is DIFFERENT.
`overset(+3)((CN))_(2(g))+2OH_((g))^(-)tooverset(+2)(CN_((AQ))^(-))+overset(+4)(CNO_((aq))^(-))+H_(2)O_((l))`
In a disproportionation reaction an element in one oxidation state is simultaneously oxidised and reduced. So, we can say that dissolution of cyanide in basic medium is DISPROPORTIONATE reaction.


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