Time management is very much important in IIT JAM. The eduncle test series for IIT JAM Mathematical Statistics helped me a lot in this portion. I am very thankful to the test series I bought from eduncle.
Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Sanjay 1
after replacing H-atoms to Cl atoms it becomes showing reverse hyper conjugation then +ve charge character effect on ortho and para position then according to it at Meta position electron density is max. compare to ortho and para so called meta director