An ester is named ethyl ethanoate. This tells us that it was formed from
Correct answer: A. ethanoic acid and ethanol
- A. ethanoic acid and ethanol
- B. ethanol and methanoic acid
- C. ethanoic acid and methanol
- D. ethanal and ethanol
Explanation
The first part of an ester name comes from the alcohol and the second from the acid, so ethyl ethanoate is made from ethanol and ethanoic acid. Methyl ethanoate would come from methanol and the same acid, which is the closest distractor. Reading ester names in this order is essential when working backwards to identify the reactants.
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About Carboxylic Acid Derivatives
Carboxylic acid derivatives include acid halides, acid anhydrides, esters and amides, formed by replacing the hydroxyl group of a carboxylic acid. Their nomenclature, structures, preparation, hydrolysis and relative reactivity are linked through nucleophilic acyl substitution, which differs from the nucleophilic addition reactions of aldehydes and ketones.
Practise Carboxylic Acids
550 free Carboxylic Acids MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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