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NaCl aqueous solution on electrolysis gives H2(g),Cl2(g) and NaOH.
2Cl(aq)+2H2O2OH(aq)+H2(g)+Cl2(g). In 20 L of NaCl solution (20% by weight), current of 25. A with 62% of current efficiency is passed. Which of the following reaction will occur at anode?

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a
2Cl−→Cl2+2e−
b
2H2O+2e−→H2+2OH
c
Both (a) and (b)
d
None of these

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detailed solution

Correct option is A

Anode 2Cl−(aq)⟶Cl2(g)+2e−

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