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Alkanes from Reduction of Carboxylates - Kolbe's Electrolytic method

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  • Sodium or potassium salt of a dicarboxylic acid on electrolysis gives an alkene. An alkene is generated when an aqueous solution of sodium or potassium salt of a dibasic acid (with adjacent carboyxlic groups) is electrolyzed.

    Example: Electrolysis of Sodium Succinate

    The electrolysis of sodium succinate gives ethene.

    Oxidation at the anode

    Reduction at Cathode

    \[ 2H_2O + 2e^- \rightarrow 2OH^- + H_{2(g)}\]


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