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)
Imdadul haque
explanation sir please
you have to check plane in 3D.
see the concept it double bonds or rings or both are in even number then terminal groups will be in opposite plane if odd the terminal atoms will be in same plane
check it