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)
Dinesh khalmaniya 1
option D https://www.google.com/amp/s/amp.doubtnut.com/question-answer-chemistry/a-fuel-cell-develops-an-electrical-potential-from-the-combustion-of-butane-at-1-bar-and-298-k-c4h10g-17242696