Haloform test is given by
(A) Formaldehyde
(B) Acetone
(C) $α$-Phenyl ethyl alcohol
(D) Acetaldehyde
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → (B), (C) and (D) only
Haloform test is given by compounds containing the group CH₃–CO– (methyl ketones) or CH₃–CH(OH)– (which can be oxidised to methyl ketones).
- (A) Formaldehyde (HCHO) -- INCORRECT
Does not contain –COCH₃ group and does not give haloform test. - (B) Acetone (CH₃COCH₃) ---- CORRECT
It is a methyl ketone → gives haloform test. - (C) α-Phenyl ethyl alcohol (C₆H₅–CHOH–CH₃) -- CORRECT
On oxidation, it forms acetophenone (a methyl ketone) → gives haloform test. - (D) Acetaldehyde (CH₃CHO)---CORRECT
- It contains the –CH₃CO– framework → gives haloform test.