What this practice covers
These questions are drawn from past CIE 9701 Chemistry papers and filtered to nitrogen compounds. You answer, you find out immediately whether you were right, and you get the reasoning for the correct option and for each distractor. Wrong answers go to a mistakes locker so you can come back to exactly those.
Practice is free. You need an account only so your progress and your mistakes are still there next time.
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What examiners see students get wrong here
These are the errors that cost marks on nitrogen compounds, taken from our own topic notes. Read them before you practise and you will recognise the traps in the questions.
- Classifying an amine by the carbons on the adjacent carbon. Count the groups on the nitrogen.
- Saying phenylamine is a stronger base than ammonia. The delocalised lone pair makes it much weaker.
- Saying amides are basic like amines. The lone pair is delocalised onto the carbonyl oxygen.
- Forgetting excess ammonia in the halogenoalkane route, or claiming the product is pure.
- Drawing the zwitterion with the wrong groups charged. The acid loses its proton and the amine gains it.
- Saying an amino acid is negative in acid. In acid it is positive.
Revise it first
If any of the above is unfamiliar, work through the notes before practising: Nitrogen compounds revision notes.