A-LevelChemistryNitrogen and sulfur9701/41 · Oct/Nov 2021 · Q85 Marks
Phenylamine, C₆H₅NH₂, and ethylamine, C₂H₅NH₂, can be distinguished by adding aqueous bromine.
- (a)State what is seen when aqueous bromine is added to phenylamine.[2]
- (b)Suggest what is seen when aqueous bromine is added to ethylamine.[1]
- (c)Draw the structure of the organic product formed when an excess of aqueous bromine is added to phenylamine.[1]
- (d)Name the product you have drawn in (c).[1]
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
Mark scheme
Marking points from the official mark scheme (Oct/Nov 2021). The mark or mark type is shown in brackets.
- [1] bromine decolourised OR orange / brown to colourless
- [1] white precipitate
- [1] no change
- [1] [Structure of 2,4,6-tribromophenylamine]
- [1] 2,4,6-tribromophenylamine ECF 8(c) for a bromophenylamine
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