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JEE Main & Advanced Chemistry The p-block Elements-II / p-ब्लॉक तत्व-II Question Bank Self Evaluation Test - The p-Block Elements (Group 15, 16, 17 & 18)

  • question_answer
    The brown ring test for \[NO_{2}^{-}\] and \[NO_{3}^{-}\] is due to the formation of complex ion with a formula

    A) \[{{[Fe{{({{H}_{2}}O)}_{6}}]}^{2+}}\]         

    B) \[{{[Fe(NO){{(CN)}_{5}}]}^{2+}}\]

    C) \[{{[Fe{{({{H}_{2}}O)}_{5}}NO]}^{2+}}\]

    D) \[{{[Fe({{H}_{2}}O){{(NO)}_{5}}]}^{2+}}\]

    Correct Answer: C

    Solution :

    [c] \[{{[Fe{{({{H}_{2}}O)}_{5}}NO]}^{2+}}\] ion is formed


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