JEE Main Chemistry question

Sodium cannot be extracted by the electrolysis of brine solution because:

(A)Sodium liberated reacts with water to produce NaOH+
(B)Sodium being more electropositive than hydrogen, is liberated at cathode and not sodiumCorrect
(C)Electrolysis cannot take place with brine solution
(D)None of the above

Answer: (B)

Solution

Because sodium is far more electropositive than hydrogen, (from water) is preferentially discharged and reduced at the cathode in preference to during electrolysis of aqueous NaCl, so is liberated instead of metallic sodium. Even if trace Na were somehow formed, it would

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Question ID VK-137918