Answer:
Polymerization
Step-by-step explanation:
Polymerization reactions are those reactions in which small molecules called as monomers join together to form a large molecule also known as polymers. These reactions are done via different mechanisms including addition reactions and condensation reactions.
Example:
Proteins (polymer) are made up of amino acids (monomers) through condensation reaction as,
n H₂N-RCH-COOH → H₂N-[-RCH]n-COOH + n H₂O
In above equation "n" represent large number, H₂N-RH-COOH represent amino acid (monomer) and H₂N-[-RH]n-COOH represent protein (polymer). While, the H₂O eliminated is the small neutral molecule.
Other examples include Polystyrene, Polyethylene, Polyester, Teflon, DNA, Cellulose, Nylon e.t.c.