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Question

When electricity is passed through an aqueous solution of sodium chloride, it decomposes to form

This question was previously asked in
CDS 2 2026 Maths Question Paper (13-Sep-2026)
The correct answer is

NaOH

Electrolysis of an aqueous solution of sodium chloride (brine) is the basis of the chlor-alkali process, which produces sodium hydroxide (NaOH), along with chlorine gas at the anode and hydrogen gas at the cathode.

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