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)
Rahul
as most unsymmetrical crystal system also have a centre of symmetry, if organic solids are of crystalline nature then it would belong to any of the crystal system and would possibly have atleast center of symmetry...so, can we conclude that all organic solids are optically inactive....or they are amorphous in nature?