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)
Priyanshu kumar
For ques 6 you can proceed by option elimination method as in a Ist 2nd and 4th option the chromium is not replaced by ferrrous ions in coordination sphere. In only option C it satisfies...So option C is correct.