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 Best Answer
option C identical..In A two chlorine and two bromine are drawn above the plane and in B two chlorine and bromine are drawn below the plane ...that means same compound are drawn reverently... So these pairs are identical