Question

what happened when anisole react with (a) excess of HI (b) concentrated HNO3​

Answer 1

With a mixture of conc.HNO  

3

​

 and conc. H  

2

​

SO  

4

​

  (nitrating mixture), anisole gives ortho and para nitro anisole. Methoxy group (−OCH  

3

​

 group) is activating and ortho para directing group.