CAIE A Level Chemistry 9701 · Carboxylic acids and derivatives
Methylbenzene, , can be converted into benzoic acid, , by refluxing with an excess of hot alkaline , followed by acidification with dilute sulfuric acid.
Describe the conditions and the observations for this reaction, and write the overall equation for the oxidation of methylbenzene to benzoic acid. In your answer, include the role of the alkaline and the reason for the acidification step.
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.
Written by Markquill to follow the Cambridge International syllabus. Markquill is independent and is not affiliated with or endorsed by Cambridge International.