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NEET Sample Paper NEET Sample Test Paper-30

  • question_answer
    A metal nitrate reacts with \[KI\]to give a black precipitate which on additon of excess o \[KI\]convert into orage colour solution. The cation of metal nitrate is

    A)  \[H{{g}^{2+}}\]                

    B)  \[B{{i}^{3+}}\]

    C)  \[S{{n}^{2+}}\]                

    D)  \[P{{b}^{2+}}\]

    Correct Answer: B

    Solution :

    \[B{{i}^{3+}}+3{{I}^{-}}\xrightarrow{{}}\underset{black}{\mathop{Bi{{I}_{3}}}}\,\downarrow \xrightarrow{{{I}^{-}}excess}\underset{orange\,\,solution}{\mathop{{{\left[ Bi{{I}_{4}} \right]}^{-}}}}\,\]


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