What is a condensation reaction in the context of polymerisation?

A condensation reaction occurs when monomers join together to form a polymer, typically losing small molecules such as water in the process. This type of reaction is essential in forming larger, complex molecules from simpler units.

This answer demonstrates an understanding of the concept of condensation reactions and their role in polymerisation, which is a key aspect of the learning objective. It tests the student's ability to explain the process and its significance. This response is aligned to Polymerisation and naturally occurring polymers because it explains when these monomers react they join together, usually losing small molecules such as water, so the reactions are called condensation reactions using the correct AQA GCSE Chemistry organic context. Keep molecular formula, structural formula, displayed formula, and general formula distinct. Do not confuse alkanes with alkenes, saturated with unsaturated, cracking with combustion, polymers with monomers, or hydrocarbons with oxygen-containing alcohols and carboxylic acids. When formulae are used, preserve the stored notation exactly and explain the GCSE chemistry idea in words rather than using unsupported displayed-formula diagrams.