WB JEE Medical WB JEE Medical Solved Paper-2006

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

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

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

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

    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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