JEE Main & Advanced Chemistry Metallurgy / धातुकर्म Question Bank Refining of crude Metal

  • question_answer
    Which one of the following is manufactured by the electrolysis of fused sodium chloride [CPMT 1979, 83, 91]

    A) \[NaOH\]

    B) \[NaClO\]

    C) \[Na\]

    D) \[NaCl{{O}_{3}}\]

    Correct Answer: C

    Solution :

    \[\underset{(\text{fused})}{\mathop{2NaCl}}\,\to 2N{{a}^{+}}+2C{{l}^{-}}\] Anode: \[2C{{l}^{-}}\to 2{{e}^{-}}+C{{l}_{2}}\] (oxidation) Cathode: \[2N{{a}^{+}}+2{{e}^{-}}\to 2Na\]- (reduction)


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