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KVPY Sample Paper KVPY Stream-SX Model Paper-12

  • question_answer
    An aqueous solution contains \[A{{l}^{3+}}\]& \[Z{{n}^{2+}}\] both. To this solution \[N{{H}_{4}}OH\]is added in excess -

    A) Only \[Al{{(OH)}_{3}}\]will be precipitated

    B) Only \[Zn{{(OH)}_{2}}\]will be precipitated

    C) Both will be precipitated

    D) No precipitate will appear

    Correct Answer: A

    Solution :

    in excess of \[N{{H}_{4}}OH\] ppt \[Zn{{(OH)}_{2}}\]of will get dissolved.


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