CAIE A Level Chemistry 9701 · Hydrocarbons
In a school laboratory, a student heats cyclohexanol with concentrated phosphoric acid and collects a liquid product. The student suspects this liquid is cyclohexene.
Suggest how the student could confirm that the liquid is cyclohexene, and how the student could use the product to determine the position of the double bond in an unknown alkene.
6 marks, so the mark scheme is looking for about 6 separate creditworthy points. Making the same point twice in different words earns it once.
Suggest means: Apply what you know to an unfamiliar situation. There may be more than one acceptable answer. Reason from the principle you have learned to the new context, and say which principle you are using.
Written by Markquill to follow the Cambridge International syllabus. Markquill is independent and is not affiliated with or endorsed by Cambridge International.