Ethanol can be oxidised by heating with potassium dichromate(VI) in dilute sulfuric acid
1 mark · NormalWhich statement best explains the role of dilute sulfuric acid in the oxidation of ethanol with potassium dichromate(VI)?
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Correct option: It provides hydrogen ions needed for the reaction.
Common mistakes: Choosing 'acts as a catalyst' or 'reacts with ethanol to make ethene'
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Marking points
B1 · 1 mark · Correct option selected.
Worked solution
The dilute sulfuric acid provides hydrogen ions (H+) required for the oxidising agent to work.