Question:
Which compound does not show an iodoform test?
Which compound does not show an iodoform test?
Show Hint
Check which compound lacks a methyl group directly attached to a carbonyl.
Updated On: Jul 3, 2026
- Acetaldehyde
- Acetone
- Propanal
- Acetophenone
Show Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Step 1: The iodoform test is positive for compounds with a CH3-CO- group or a CH3-CH(OH)- group.
Step 2: Acetaldehyde, acetone, and acetophenone all have this CH3-CO- arrangement.
Step 3: Propanal, CH3-CH2-CHO, has an ethyl group on the carbonyl, not a methyl group, so it gives a negative test.
\[\boxed{\text{Propanal}}\]Was this answer helpful?
0
0
Top CPET Chemistry Questions
- Which intermediate is formed during the reaction of acetamide with bromine in the presence of excess KOH solution?
- What is the major product of the reaction between benzene and iso-butyl bromide in the presence of AlCl3?
- Which product is obtained when 1-pentene reacts with HCl in the presence of benzoyl peroxide?
- What is the product of the reaction between n-butyl benzene and alcoholic KMnO4?
- Which alkene can be used for the synthesis of propanal exclusively using ozonolysis?
View More Questions
Top CPET Chemical Reactions of Aldehydes Ketones and Carboxylic Acids Questions
Top CPET Questions
- Which of the following is a key reason for choosing DRAM over SRAM for main memory?
- Which of the following components in an FPGA is responsible for implementing combinational and sequential logic?
- What is the main purpose of declaring a base class as virtual in multiple inheritance?
- What happens if a class contains at least one pure virtual function?
- What happens if a derived class defines a function with the same name as a base class function, but with a different parameter list?
View More Questions