isotopic method, cross-over experiment, intermediate trapping, stereochemistry; energy of activation Post author By Miraj Ahmad Ansari Post date December 11, 2020 UPSC Chemistry Reaction Mechanisms isotopic method, cross-over experiment, intermediate trapping, stereochemistry; energy of activation Lesson Progress 0% Complete Previous Topic Back to Lesson Next Topic ← General methods (both kinetic and non-kinetic) of study of mechanism of organic reactions → thermodynamic control and kinetic control of reactions.