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VMMC VMMC Medical Solved Paper-2003

  • question_answer
    When yellow solution of \[\text{FeC}{{\text{l}}_{\text{3}}}\] is treated with \[\text{SnC}{{\text{l}}_{2}},\] the colour changes to:

    A)  green                  

    B)         black    

    C)         grey                     

    D)         no colour change

    Correct Answer: A

    Solution :

    \[\text{SnC}{{\text{l}}_{2}}\]reduce \[\text{FeC}{{\text{l}}_{\text{3}}}\]into \[\text{FeC}{{\text{l}}_{2}}\] (green). \[SnC{{l}_{2}}+2FeC{{l}_{3}}\xrightarrow{{}}\underset{\text{Green}}{\mathop{2FeC{{l}_{2}}}}\,+SnC{{l}_{4}}\]


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