Question

    Ultra-purification of metals is achieved

    using:
    A Zone melting Correct Answer Incorrect Answer
    B Smelting Correct Answer Incorrect Answer
    C Leaching Correct Answer Incorrect Answer
    D None of these Correct Answer Incorrect Answer

    Solution

    Zone melting is a technique used for the ultra-purification of metals by melting a small region and moving it along the metal, removing impurities.

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