CAIE A-Level Chemistry AS 18.2.2 Hydrolysis of Esters By Dil Acid and By Dil Questions

Practise CAIE 9701 ester hydrolysis with dilute acid or hot alkali, identifying carboxylic acid or carboxylate and alcohol products.

Exam points

with dilute acid and heat, split the ester into a carboxylic acid and an alcohol
with dilute alkali and heat, form a carboxylate salt and an alcohol rather than free acid
assign each product by tracing the acyl and alkoxy sides of the original –COO– linkage

[Maximum number: 1]

Compound Q can be hydrolysed by HCl(aq). The two products of this hydrolysis have the same empirical formula.

What could Q be?

$\mathrm{CH}_{3} \mathrm{CO}_{2} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{OH}$

$\mathrm{CH}_{3} \mathrm{CO}_{2} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CO}_{2} \mathrm{H}$

$\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CO}_{2} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{3}$

$\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}(\mathrm{OH}) \mathrm{CH}(\mathrm{OH}) \mathrm{CH}_{2} \mathrm{CH}_{3}$

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