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MHT CET · Chemistry · Electrochemistry

Which of the following is released at cathode during electrolysis of aqueous sodium chloride?

  1. A \(\mathrm{Cl}_{2(\mathrm{~g})}\)
  2. B \(\mathrm{Na}_{(\mathrm{s})}\)
  3. C \(\mathrm{O}_{2(\mathrm{~g})}\)
  4. D \(\mathrm{H}_{2(\mathrm{~g})}\)
Verified Solution

Answer & Solution

Correct Answer

(D) \(\mathrm{H}_{2(\mathrm{~g})}\)

Step-by-step Solution

Detailed explanation

At cathode : \(2 \mathrm{H}_2 \mathrm{O}_{(1)}+2 \mathrm{e}^{-} \rightarrow \mathrm{H}_{2(\mathrm{~g})}+2 \mathrm{OH}_{(\mathrm{aq})}\)