12th Class Chemistry Nitrogen Containing Compounds Question Bank 12th CBSE Chemistry Nitrogen Containing Compounds

  • question_answer
    Explain what happens when aniline reacts with a mixture of conc. sulphuric acid and conc. nitric acid.

    Answer:

                    Nitration of aniline with a nitrating mixture consisting of conc. \[HN{{O}_{3}}\] and conc. \[{{H}_{2}}S{{O}_{4}}\]gives m-nitroaniline as the product in very small proportions. A major portion of aniline is converted into a black tarry mass due to partialoxidation of the ring. Under strongly acidic conditions, aniline is protonated to form a cation which deactivates the ortho and para positions in the ring. The nitration occurs at the meta position.


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