Answer: Organic
Explanation: since both esterification reaction and polymerization are belongs to Synthetic organic chemistry.
Esterification involves the synthesis of ester from carboxylic acid and alcohol in the presence of mineral acids as catalyst.
RCOOH +R'OH + HCl--------> RCOOR' + H2O
And polymerization is also an example for organic synthesis used to prepare polymers.
Example , Synthesis of polyethene from ethene and PVC from vinyl chloride
