Q. The compounds which give positive Fehling's test are : (A) C₆H₅–CHO (benzaldehyde) (B) C₆H₅–CO–CH₃ (acetophenone) (C) HOCH₂–CO–(CHOH)₃–CH₂–OH (D) CH₃–CHO (E) C₆H₅–CH₂–CHO (phenylacetaldehyde) Choose the correct answer from the options given below :
A) (A), (D) and (E) Only
B) (C), (D) and (E) Only
C) (A), (C) and (D) Only
D) (A), (B) and (C) Only
Explanation
[Solution by Dr. Abubacker] Fehling's test is positive for aliphatic aldehydes and α-hydroxy ketones (such as fructose, C). Aromatic aldehydes (A) and ketones (B) do not respond, while (C), (D) and (E) do. Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.