Classify each of the following reactions as an addition reaction, a nucleophilic substitution reaction, an electrophilic substitution reaction, or a condensation reaction:

(a) The reaction of terephthalic acid with 1,2-ethanediol;

(b) The reaction of 3-chlorohexane with concentrated sodium hydroxide;

(c) The reaction of water with 2-iodo-2-methylpropane;

(d) The reaction of propanoic acid with ethanol;

(e) The reaction of toluene with bromine in the presence of FeBr₃.