JIPMER Jipmer Medical Solved Paper-2013

  • question_answer
    On addition of cone. \[{{H}_{2}}S{{O}_{4}}\] to a chloride salt, colourless fumes are evolved but in case of iodide salt, violet fumes come out. This is because

    A)  \[{{H}_{2}}S{{O}_{4}}\] reduces\[HI\]to\[{{I}_{2}}\]

    B)  \[HI\] is of violet colour

    C)  \[HI\] gets oxidised to \[{{I}_{2}}\]

    D)  \[HI\] changes to\[HI{{O}_{3}}\]

    Correct Answer: C

    Solution :

    \[HI\] being a stronger reducing agent than \[{{H}_{2}}S{{O}_{4}},\] reduces \[{{H}_{2}}S{{O}_{4}}\] to \[S{{O}_{2}}\] and is itself oxidized to\[{{I}_{2}}.\]


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