The formation of large molecules from small repeating units is known as what kind of reaction? oxidation reduction condensation hydrolysis

The formation of large molecules from small repeating units is known as Condensation.

Condensation is the change of the state gas phase into the liquid phase. It is also known as the reverse of vaporization. In condensation process, small molecules of gas combine or join together making a large liquid molecule so we can conclude that the formation of large molecules from small repeating units is known as Condensation.

Learn more about reaction here: link