CAIE A Level Chemistry 9701 · An introduction to organic chemistry

An introduction to organic chemistry: describe question

Describe7 marksChallenge

Two reactions are used in the synthesis of a pharmaceutical compound.

Reaction 1: Methylbenzene is reacted with a mixture of concentrated nitric acid and concentrated sulfuric acid at 50°C to form 1-methyl-2-nitrobenzene and water.

Reaction 2: Ethanoyl chloride is reacted with an excess of methylamine to form N-methylethanamide and ammonium chloride.

Describe the type of organic mechanism that occurs in each reaction. Use the terms electrophilic substitution and addition-elimination in your answer.

0 words · 7 marks

No account needed for your first marks. Your answer is used only to mark it.

How this question is marked

7 marks, so the mark scheme is looking for about 7 separate creditworthy points. Making the same point twice in different words earns it once.

Describe means: Say what happens or what something is like, in order and with detail. You are not being asked why. If there is data, quote it: name the trend, then give figures with units at the points where it changes.

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