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Factors Affecting Electrolysis

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Question

Write the products obtained when aqueous sodium chloride is electrolysed.

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Solution

When an aqueous solution of sodium chloride is electrolysed chlorine, hydrogen and a solution of sodium hydroxide are formed. Chlorine gas forms at the positive electrode (anode) and hydrogen gas at the negative electrode (cathode).
$NaCl + H_{2} O \to {Cl}_{2} + H_{2} + NaOH$

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