Question

Which of the following statements regarding the hydrolysis of labelled ethyl ethanoates, 1 or2, in normal water is wrong?

• A. During the acid hydrolysis of 1, unlabelled ethyl ethanoate can be recovered.
• B. The product ethanoic acid contains the 18O isotope in acid hydrolysis of both 1 and 2.
• C. The product ethanol contains the 18O isotope in alkaline hydrolysis of 2.
• D. During the alkaline hydrolysis of 1, unlabelled ethyl ethanoate can be recovered.

Answer 1

The correct option is B The product ethanoic acid contains the 18O isotope in acid hydrolysis of both 1 and 2.

The ethanoic acid obtained by the hydrolysis of the reactant 1 contains ${}^{18}O$ but the ethanoic acid obtained by the hydrolysis of the reactant 2 does not contain ${}^{18}O$ isotope.