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)
Pinky chaudhary
b) size decreases when we move left to right in the periodic table, and z-effect increases therefore the tendency to loose OH- ion decreases and hence the basic character decreases left to right hence basicty of Ce(OH)3 is more... Pm (promethium) is radioactive..