Ethanol can be oxidised to ethanoic acid by warming with a solution of an oxidising agent in the presence of sulphuric acid.

1. aName a suitable oxidising agent. [1]
2. bDescribe the structure of ethanoic acid showing all the bonds between atoms (draw it on paper). [1]
3. cSuggest the pH of aqueous ethanoic acid of concentration 1.0 mol/dm³. [1]
4. dState one other reaction that ethanoic acid will undergo. [1]
5. eComplete the table about the sources and uses of tartaric acid and citric acid. [4]

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