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NEET levelSingle correct optionDifficulty 1 of 3hc168

On electrolysis of a concentrated aqueous solution of sodium acetate, the gaseous products at the anode are:

A $CH X_{4}$ and $CO X_{2}$
B $C X_{2} H X_{6}$ and $CO X_{2}$
C $C X_{2} H X_{6}$ and $H X_{2}$
D $CH X_{4}$ and $H X_{2}$

Answer: B

In Kolbe electrolysis the acetate ion is oxidised at the anode, losing

CO X_{2}

to give

CH X_{3}

radicals that dimerise to ethane. Hydrogen is evolved at the cathode, not the anode.

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