Question detail
Which of the following monomers could form a condensation polymer with the repeating unit –[–CO–O–]–?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Reactions of alkenes and alcohols (chemistry only)
Question
- A. Ethylene
- B. Ethylene glycol
- C. Acetic acid
- D. Propylene oxide
Answer
The correct option is Ethylene glycol.
Explanation
The correct option is Ethylene glycol. Ethylene glycol is correct because it directly supports the approved learning objective to condensation polymerisation involves monomers with two functional groups. This belongs to Polymerisation and naturally occurring polymers within Reactions of alkenes and alcohols (chemistry only), so the answer must use the correct organic chemistry context. The other options are incorrect when they confuse the organic family, formula type, reaction condition, product, or property being tested. 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.
Common mistake
Confusing Functional Groups
Students often confuse monomers with one functional group with those that have two functional groups, leading to incorrect identification of condensation polymerisation.
Remember that condensation polymerisation specifically requires monomers with two functional groups, which allows them to react and form polymers while releasing small molecules like water.
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