Question

The compounds formed at anode in the electrolysis of an aqueous solution of potassium acetate, are

• A. $C_{2}H_{6}$ and $CO_{2}$
• B. $C_{2}H_{4}$ and $CO_{2}$
• C. $CH_{4}$ and $H_{2}$
• D. $CH_{4}$ and $CO_{2}$

Answer 1

Answer: (A)

$C_{2}H_{6}$ and $CO_{2}$

Answer 2

This is an example of Kolbe's electrolysis.
$2 CH _{3} COOK {->[\text { electrolysis }]}2 CH _{3} COO ^{-}+2 K ^{+}$
At cathode :
$2 K ^{+}+2 e^{-} \longrightarrow 2 K$
$2 K +2 H _{2} O \longrightarrow 2 KOH + H _{2} \uparrow$
At anode :