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CAIE A Level Chemistry 9701 · Carboxylic acids and derivatives

Carboxylic acids and derivatives: suggest question

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A student prepares ethyl ethanoate by adding ethanol dropwise to ethanoyl chloride in a flask. The mixture fizzes and steamy fumes are given off. In a separate preparation, phenyl benzoate is made by adding phenol to benzoyl chloride in the presence of aqueous sodium hydroxide.

Suggest why the reaction of ethanol with ethanoyl chloride is vigorous and produces fumes, and why the reaction of phenol with benzoyl chloride is carried out in the presence of aqueous sodium hydroxide.

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