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AQA GCSE · Question 08.1 · Organic chemistry
This question is about monomers and polymers. Compound A has an alkene functional group and an ester functional group. Figure 8 represents a molecule of compound A.
Draw a circle around the alkene functional group on Figure 8.
This question is about monomers and polymers. Compound A has an alkene functional group and an ester functional group. Figure 8 represents a molecule of compound A.
Draw a circle around the alkene functional group on Figure 8.
How to approach this question
The question asks you to identify the alkene functional group. Recall the definition of an alkene. The functional group is the part of the molecule responsible for its characteristic reactions.
Full Answer
A circle should be drawn around the C=C double bond.
In organic chemistry, a functional group is a specific group of atoms or bonds within a molecule that is responsible for the characteristic chemical reactions of that molecule.
- An **alkene** is a hydrocarbon that contains at least one carbon-carbon double bond (C=C). This C=C double bond is the alkene functional group.
- An **ester** has the functional group -COO-.
In the given molecule, the C=C double bond is the alkene functional group.
Common mistakes
✗ Circling the C-O bond.
✗ Circling the C=O bond.
✗ Circling the entire molecule.
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