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BHU PMT BHU PMT (Screening) Solved Paper-2009

  • question_answer
    Which one of the following cations gives a brick red flame by flame test?

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

    B)  \[S{{r}^{2+}}\]

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

    D) \[Z{{n}^{2+}}\]

    Correct Answer: C

    Solution :

                     Alkali and alkaline earth metals\[(Ca,Sr,Ba)\] give characteristic colour when introduced in Bunsen flame. \[B{{a}^{2+}}\]             ? Apple green \[S{{r}^{2+}}\]              ? Crimson red \[C{{a}^{2+}}\]             ? Brick-red


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