The gaseous products formed at cathode $(X)$ and anode $(Y)$, when an aqueous solution of sodium acetate is…

The gaseous products formed at cathode $(X)$ and anode $(Y)$, when an aqueous solution of sodium acetate is electrolysed are $\begin{array}{ll}X & Y\end{array}$
  1. $\begin{array}{cc}\mathrm{CO}_2 & \mathrm{C}_2 \mathrm{H}_6, \mathrm{H}_2\end{array}$
  2. $\mathrm{H}_2, \mathrm{CO}_2 \quad \mathrm{C}_2 \mathrm{H}_6$
  3. $\mathrm{H}_2 \quad \mathrm{C}_2 \mathrm{H}_6, \mathrm{CO}_2$
  4. $\mathrm{C}_2 \mathrm{H}_6, \mathrm{H}_2 \quad \mathrm{CO}_2$

Solution

When sodium acetate is electrolysed in aqueous medium, it react as follows $ 2 \mathrm{CH}_3 \mathrm{COONa}+2 \mathrm{H}_2 \mathrm{O} \longrightarrow 2 \mathrm{CO}_2+2 \mathrm{C}_2 \mathrm{H}_6+2 \mathrm{H}_2 $ At anode (Y): $\mathrm{C}_2 \mathrm{H}_6+\mathrm{CO}_2$ At cathode $(\mathrm{X}): \mathrm{H}_2$

Asked in: AP EAMCET 2017 (26 Apr Shift 1)

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