BVP Medical BVP Medical Solved Paper-2009

  • question_answer
    Which give (s) yellow precipitate with \[{{K}_{2}}Cr{{O}_{4}}\]?

    A)  \[B{{a}^{2+}}\]                                

    B)  \[C{{d}^{2+}}\]

    C)  \[C{{a}^{2+}}\]                                

    D)  \[S{{r}^{2+}}\]

    Correct Answer: A

    Solution :

                    Among the given ions, only \[B{{a}^{2+}}\] gives yellow precipitate of barium chromate, when treated with \[{{K}_{2}}Cr{{O}_{4}}\].\[B{{a}^{2+}}+{{K}_{2}}Cr{{O}_{4}}\xrightarrow{{}}\underset{yellow\,ppt.}{\mathop{BaCr{{O}_{4}}}}\,+2{{K}^{+}}\]


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