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)
Suman Kumar
Bulkier group should occupy equatorial position
So 4th one is most stable
1st one will be more stable than 3rd as ethyl is bulkier than methyl. So in 1st option ethyl has occupied equatorial position
Now 4th is least stable as both substituent here are in axial position
Are you there Tasmeem
solution you got na Tasmeem?