JEE Main & Advanced Chemistry Hydrogen & Its Compounds Question Bank Hydrogen

  • question_answer Pure hydrogen is obtained by carrying electrolysis of

    A) Water containing \[{{H}_{2}}S{{O}_{4}}\]

    B) Water containing NaOH

    C) \[Ba{{(OH)}_{2}}\] solution

    D) KOH solution

    Correct Answer: C

    Solution :

    Pure hydrogen is obtained by the electrolysis of \[Ba{{(OH)}_{2}}\] solution in a U-tube using nickel electrode. The gas is liberated at the cathode and is passed over heated platinum gauze to remove oxygen if present as impurity.

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