CAIE A Level Chemistry 9701 · Nitrogen compounds

Nitrogen compounds: explain question

Explain4 marksStandard

Explain, with reference to reagents and conditions, how a secondary amine can be prepared from a primary amine and a halogenoalkane. Also explain why a secondary amine in aqueous solution is a stronger base than a primary amine with the same alkyl groups.

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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