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    Question

    Which of the following is the most widely used method

    for refining impure metals?
    A Vapour-Phase Refining Correct Answer Incorrect Answer
    B Poling Refining Correct Answer Incorrect Answer
    C Electrolytic Refining Correct Answer Incorrect Answer
    D Liquidation Refining Correct Answer Incorrect Answer

    Solution

    The correct answer is C

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