Question
When acidulated water (dil. $\mathrm{H}_2 \mathrm{SO}_4$ solution) is electrolysed, will the pH of the solution be affected? Justify your answer.

Answer

$\text{At anode}:\ \ 2\text{H}_2\text{O}\xrightarrow{\ \ \ \ \ \ \ \ \ \ \ \ }\text{O}_2+4\text{H}^++4\text{e}^-$
$\text{At cathode}:\ \ 4\text{H}^++4\text{e}^{-}\xrightarrow{\ \ \ \ \ \ \ \ \ \ \ \ \ }2\text{H}_2$

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