AP EAMCET · Chemistry · Hydrogen
Which of the following solution produces \(\mathrm{H}_2 \mathrm{O}_2\) on electrolysis?
- A \(0.2 \mathrm{~N} \mathrm{NaOH}\)
- B \(50 \% \mathrm{H}_2 \mathrm{SO}_4\)
- C \(2 \% \mathrm{H}_2 \mathrm{SO}_4\)
- D \(5 \% \mathrm{NaCl}\)
Answer & Solution
Correct Answer
(B) \(50 \% \mathrm{H}_2 \mathrm{SO}_4\)
Step-by-step Solution
Detailed explanation
\(\mathrm{H}_2 \mathrm{O}_2\) is obtained by the electrolysis of a cold \(50 \%\) solution of \(\mathrm{H}_2 \mathrm{SO}_4\) \[ \mathrm{H}_2 \mathrm{SO}_4 \rightleftharpoons \mathrm{H}^{+}+\mathrm{HSO}_4^{-} \] The electrolysis of \(\mathrm{HSO}_4^{-}\)ion gives…
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