Explain4 marksStandard
Explain why amides are much weaker bases than amines. Describe how an amide can be prepared from an acyl chloride. Describe the reduction of an amide using .
CAIE A Level Chemistry 9701 · Nitrogen compounds
Nitrogen compounds: 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.
More Nitrogen compounds questions
- 4 marks · A student wants to prepare a primary amine from 1-bromopropane. The student mixes 1-bromopropane with an excess of ammonia dissolved in…
- 4 marks · A student adds bromine water dropwise to a sample of phenylamine at room temperature. Suggest what the student would observe and explain…
- 5 marks · Describe how ethylamine can be prepared from bromoethane and ammonia. Include the conditions and the equation for the reaction.
- 4 marks · A student prepares a nitrile by reacting 1-bromopropane with potassium cyanide in ethanol and heating the mixture. The nitrile is then…
- 5 marks · Ethanamide can be prepared from ethanoyl chloride, CH3COCl. (a) Describe how ethanamide is prepared from ethanoyl chloride, giving the…
- 4 marks · A student prepares a primary amide and a primary amine in the laboratory. She finds that the amine reacts readily with dilute acid to form…
Written by Markquill to follow the Cambridge International syllabus. Markquill is independent and is not affiliated with or endorsed by Cambridge International.