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JEE Main & Advanced Chemistry The p-block Elements-II / p-ब्लॉक तत्व-II Question Bank Nitrogen Family

  • question_answer
    V-A group precipitate was dissolved in \[HN{{O}_{3}}\] and treated with excess of \[N{{H}_{4}}OH\]. It gives a white ppt. because of

    A) \[Cu{{(OH)}_{2}}\]

    B) \[Cd{{(OH)}_{2}}\]

    C) \[Bi{{(OH)}_{3}}\]

    D) \[Hg{{(OH)}_{2}}\]

    Correct Answer: C

    Solution :

    When the black ppt. of \[B{{i}_{2}}{{S}_{3}}\] is dissolved in 50% \[HN{{O}_{3}}\] and a solution of \[N{{H}_{4}}OH\] is added. A white ppt. of \[Bi{{(OH)}_{3}}\] is obtained.


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