2. A reaction where a functional group is replaced by another functional group is called a(n): a) Addition reaction b) Substitution reaction c) Elimination reaction d) Rearrangement reaction

Can a mixer-settler unit be designed to closely approach phase equilibrium?

In the McCabe–Thiele method, are the stages stepped off from the top down or the bottom up? In either case, when is it best, during the stepping, to switch from one operating line to the other?Why?

Have post part A and B please show and indicate step and answer