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

  • question_answer
    Van Arkel method of purification of metals involves converting the metal to a [BHU 1990]

    A) Volatile stable compound

    B) Volatile unstable compound

    C) Nonvolatile stable compound

    D) None of the above

    Correct Answer: A

    Solution :

    \[Ti+2{{I}_{2}}\xrightarrow{500K}\underset{\begin{smallmatrix}  \text{Volatile} \\  \text{Stable}\,\text{compound} \end{smallmatrix}}{\mathop{Ti{{I}_{4}}}}\,\xrightarrow{1700K}\underset{\text{Pure}\,\text{metal}}{\mathop{Ti+2{{I}_{2}}}}\,\]


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