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

  • question_answer
    When \[{{H}_{2}}S\]gas is passed through the HCl containing aqueous solutions of \[CuC{{l}_{2}}\], \[HgC{{l}_{2}}\], \[BiC{{l}_{3}}\] and \[CoC{{l}_{2}}\], which does not precipitate out [MP PMT 2002]

    A) \[CuS\]

    B) \[HgS\]

    C) \[B{{i}_{2}}{{S}_{3}}\]­

    D) \[CoS\]

    Correct Answer: D

    Solution :

    Cobalt sulphide does not ppt. in second group.


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