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)
Mehrunnisa
a , c is incorrect most probab..because in 1 option angle of rotation around peptide bond is 180 which is mosty present and and side chains of neighbours in (cis) are in close proximity also.