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JEE Main & Advanced Chemistry Analytical Chemistry Question Bank Wet Test for Basic Radical

  • question_answer
    \[{{H}_{2}}S\] will precipitate the sulphides of all the metals from the solution of chlorides of \[Cu,Zn\] and \[Cd,\] if [MP PMT 1985]

    A) The solution is aqueous

    B) The solution is acidic

    C) The solution is dilute acidic

    D) Any of these solutions is present

    Correct Answer: C

    Solution :

    Due to common ion effect as \[HCl\ \to \ {{H}^{+}}\ +\ C{{l}^{-}}\];   \[{{H}_{2}}S\ \to \ 2\ {{H}^{+}}+\ {{S}^{2-}}\].


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