Question

Why is chlorine and not oxygen obtained during the electrolysis of aq NaCl

Answer 1

Answer:

It is due to overvoltage of oxygen gas which makes chlorine gas evolved at the anode during the electrolysis of aqueous NaCl.

Explanation:

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Answer 2

Answer:

Chloride gas is obtained during chloro-alkali process but oxygen is not obtained as aqueous sodium chloride reacts with electrolysed water.

NaCl + H2O ---------》NaOH + H2 + Cl2

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Explanation: