The gas liberated at the anode by the electro | vedclass

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(C) The electrolysis of an aqueous solution of dipotassium succinate is an example of the Kolbe electrolysis reaction.At the anode,the succinate ion u

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Ethene

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(C) The electrolysis of an aqueous solution of dipotassium succinate is an example of the Kolbe electrolysis reaction.At the anode,the succinate ion undergoes oxidation to form ethene and carbon dioxide:$CH_2COO^{-} - CH_2COO^{-} \xrightarrow{-2e^-} CH_2=CH_2 + 2CO_2$At the cathode,water is reduced to produce hydrogen gas:$2H_2O + 2e^- 	o H_2 + 2OH^-$Therefore,the gas liberated at the anode is ethene $(CH_2=CH_2)$.

The gas liberated at the anode by the electrolysis of a concentrated aqueous solution of dipotassium succinate is:

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