RAJASTHAN PMT Rajasthan - PMT Solved Paper-2006

  • question_answer
    \[KI\]and \[CuS{{O}_{4}}\] solution when mixed, give:

    A) \[Cu{{I}_{2}}+{{K}_{2}}S{{O}_{4}}\]

    B)        \[C{{u}_{2}}{{I}_{2}}+{{K}_{2}}S{{O}_{4}}\]

    C)        \[{{K}_{2}}S{{O}_{4}}+C{{u}_{2}}{{I}_{2}}+{{I}_{2}}\]

    D)        \[{{K}_{2}}S{{O}_{4}}+Cu{{I}_{2}}+{{I}_{2}}\]

    Correct Answer: C

    Solution :

    \[2KI+CuS{{O}_{4}}\xrightarrow{{}}\underset{unstable}{\mathop{Cu{{I}_{2}}}}\,+{{K}_{2}}S{{O}_{4}}\]                 \[2Cu{{I}_{2}}\xrightarrow{{}}C{{u}_{2}}{{I}_{2}}+{{I}_{2}}\] Hence, solution contains \[C{{u}_{2}}{{I}_{2}},\,\,{{I}_{2}}\] and\[{{K}_{2}}S{{O}_{4}}.\]


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