CAIE A Level Chemistry 9701 · Organic synthesis
A naturally occurring oil is extracted from the seeds of a tropical plant. A sample of the oil is known to contain a single ester molecule. The molecule has one ester group, one carbon-carbon double bond and one hydroxyl group.
Explain how you would use chemical tests to confirm the presence of each of these three functional groups in the oil.
4 marks, so the mark scheme is looking for about 4 separate creditworthy points. Making the same point twice in different words earns it once.
Explain means: Give the reasons or the mechanism: why or how something happens. Link each point to the next with because, so or which means. A list of facts with no links usually loses the reasoning marks.
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