IB Chemistry SL 3.2.9 Oxidation of Organic Functional Groups Questions

Use real SL exam questions to predict alcohol oxidation products and choose the conditions for aldehyde, acid and ketone formation.

Exam points

Predict the organic product from a primary, secondary or tertiary alcohol, distinguishing aldehyde, carboxylic-acid, ketone and no-reaction outcomes.
Select reagents and conditions for alcohol oxidation, including acidified dichromate or manganate, distillation to isolate an aldehyde and reflux for further oxidation to a carboxylic acid.
Write or interpret the oxidation equation or observation, including structural formulas, dichromate colour change and the primary/secondary/tertiary alcohol distinction.

[Maximum number: 2]

Ethanol is a primary alcohol that can be oxidized by acidified potassium dichromate(VI). Distinguish between the reaction conditions needed to produce ethanal and ethanoic acid.

Ethanal:
Ethanoic acid:

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IB Chemistry SL 3.2.9 Oxidation of Organic Functional Groups Questions question 1