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NEET Chemistry Analytical Chemistry Question Bank Self Evaluation Test - Analytical Chemistry

  • question_answer
    A gas "X" is passed through water to form a saturated solution. The aqueous solutions on treatment with the \[AgN{{O}_{3}}\] gives a white preciptate. The saturated aqueous solution also dissolves magnesium ribbon with evolution of a colourless gas "Y" Identify 'X' and 'Y?.

    A) \[X=C{{O}_{2}},Y=C{{l}_{2}}\]

    B) \[X=C{{l}_{2}},Y=C{{O}_{2}}\]

    C) \[X=C{{l}_{2}},Y={{H}_{2}}\]  

    D) \[X={{H}_{2}},Y=C{{l}_{2}}\]

    Correct Answer: C

    Solution :

    [c] \[C{{l}_{2}}+{{H}_{2}}O\to HCl+HClO\] \[HCl+AgN{{O}_{3}}\to \underset{White\text{ }ppt}{\mathop{AgCl\downarrow }}\,+HN{{O}_{3}}\] \[Mg+2HCl\to MgC{{l}_{2}}+{{H}_{2}}\uparrow \] Hence X is \[C{{l}_{2}}\] and Y is \[{{H}_{2}}\]


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