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)
Achyut ranjan gogoi
for hb and mb in terms of superoxide which has stretching frequency of 1100cm-1 and in hc it binds in terms of peroxide which has stretching frequency of 850cm-1