JAMB Biology 2015 Objective — Question 22

Question 22 of 50 from the Joint Admissions and Matriculation Board (JAMB) Biology 2015 Objective paper, with the correct answer and a full explanation.

Fehling's solution can be used to distinguish between

A. CH₃CHO and C₂H₅OH
B. CH₃COCH₃ and CH₃COOCH₃
C. CH₃CHO and CH₃COCH₃Correct
D. C₂H₅OH and CH₂CH₂COOH

Explanation

Alkanals (e.g. CH₃CHO, ethanal) reduce Fehling's solution while alkanones (e.g. CH₃COCH₃, propanone) do not, so Fehling's test distinguishes them.

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