Suggest4 marksStandard
A student wants to prepare propanone from propan-2-ol in the laboratory.
Suggest the reagents and conditions needed for this preparation, and explain why the product is propanone rather than an aldehyde.
CAIE A Level Chemistry 9701 · Carbonyl compounds
Carbonyl compounds: suggest question
How this question is marked
4 marks, so the mark scheme is looking for about 4 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.
More Carbonyl compounds questions
- 4 marks · Propan-2-ol is heated under reflux with acidified potassium dichromate. The organic product is propanone. Explain, in terms of the…
- 4 marks · A student carries out tests on two carbonyl compounds, P and Q, both with the molecular formula C4H8O. The results are shown. Test P Q…
- 5 marks · A student is given a sample of butanone, CH3COCH2CH3. The student adds alkaline iodine solution, I2(aq) with NaOH, and warms the mixture…
- 5 marks · Ethanol is oxidised by heating with an excess of acidified potassium dichromate(VI) and distilling off the product as it forms. The…
- 5 marks · A student has two unlabelled samples, one of butanone and one of butanal. Describe how the student could use the reaction with alkaline…
- 5 marks · A student is given a colourless liquid that is known to be a carbonyl compound. Describe how the student could confirm the presence of a…
Written by Markquill to follow the Cambridge International syllabus. Markquill is independent and is not affiliated with or endorsed by Cambridge International.