Describe5 marksStandard
Describe how the reaction of propene with bromine differs from the reaction of propane with bromine, in terms of the type of reaction, the conditions needed, and the type of mechanism involved.
CAIE A Level Chemistry 9701 · An introduction to organic chemistry
An introduction to organic chemistry: describe question
How this question is marked
5 marks, so the mark scheme is looking for about 5 separate creditworthy points. Making the same point twice in different words earns it once.
Describe means: Say what happens or what something is like, in order and with detail. You are not being asked why. If there is data, quote it: name the trend, then give figures with units at the points where it changes.
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