Explain4 marksStandard
Propanoic acid can be prepared from propan-1-ol and from propanenitrile. For each starting material, explain the reagents and conditions required to produce propanoic acid, and write an equation for the reaction.
CAIE A Level Chemistry 9701 · Carboxylic acids and derivatives
Carboxylic acids and derivatives: explain question
How this question is marked
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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