JAMB Chemistry 2021 Objective — Question 19

Question 19 of 41 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2021 Objective paper, with the correct answer and a full explanation.

The alkanol produced as a by-product of saponification (soap making) is

A. Ethane-1,1-diol
B. Propanol
C. Propane-1,2,3-triolCorrect
D. Ethanol

Explanation

Saponification: fat (glyceryl ester) + NaOH → soap (sodium fatty acid salt) + glycerol (propane-1,2,3-triol). Glycerol is the by-product.

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