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  5. Occurence and Extraction of Metals

Railways General Science & Technology Occurence and Extraction of Metals Sample Paper Occurence and Extraction of Metals Sample Test Paper-18

  • question_answer
    Which of the following can be purified by the electrolytic method?

    A)  Sodium (Na)

    B)  selenium (Se)

    C)  Boron  

    D)  chlorine \[(C{{I}_{2}})\]

    Correct Answer: B

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