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)
Abhijeet Gaurav
Actually as the 4S shell is the outermost. So it's electron would be utilised first for bond formation. After that 2 electrons of 3D shells are used. So for the formation of TiCl3 :- 2 electrons of 4s would be used & then one electron of 3d used.