question_answer 59)

  Under which of the following reaction conditions, aniline gives p-nitro derivative as the major product? (a) Acetyl chloride/pyridine followed by reaction with cone.  cone. . (b) Acetic anhydride/pyridine followed by cone.  + cone. . (c)Dil. followed by reaction with cone. + cone. . (d) Reaction with cone. +cone..

Answer:

                  (a, c) + o-isomer (minor) (c) (d) With cone.  + cone. , aniline is oxidised to form tarry products. Thus, options (a) and (b) are correct.