Question Detail

CHM 102 Qualitative and Quantitative Analysis in Organic Chemistry Objective Question

Question

What is the iodoform test positive for?
Options
A All aldehydes
B All ketones
C Methyl ketones (CH₃-CO-R) and acetaldehyde
Correct Answer
D Carboxylic acids
Correct Answer

Option C is the correct answer.

Detailed Explanation

The iodoform test (I₂/NaOH) gives a yellow precipitate only with compounds having a CH₃-CO- group (methyl ketones) and with acetaldehyde (CH₃CHO).

Hint

CH₃-CO- group.

Question Info