Which of the following compounds will undergo polymerization reaction?

Polymerization is a chemical reaction that involves the combination of many small molecules to form a large molecule with repeating structural units, called a polymer. In order for a compound to undergo polymerization, it should have a monomer or multiple monomers that can form a repeating pattern. Looking at the options given, compound (C2H4)n, also known as polyethylene, is a polymer and can undergo polymerization reaction. This is because its monomer, ethylene, contains a double bond that can break and form a chain of repeating units. On the other hand, compounds (C2H5COOH), (C2H6), and (C2H5OH) are not likely to undergo polymerization reaction because they do not have functional groups that can easily form repeating units. Therefore, the compound that will undergo polymerization reaction is (C2H4)n.