Question

Number of molecules from below which cannot give iodoform reaction is: Ethanol, Isopropyl alcohol, Bromoacetone, 2-Butanol, 2-Butanone, Butanal, 2-Pentanone, 3-Pentanone, Pentanal and 3-Pentanol

• A. 2
• B. 4
• C. 3
• D. 2

Hint:

Remember the structural requirements for the iodoform test. The compound must have a \( CH_3CO- \) or \( CH_3CH(OH)- \) group.

Answer 1

The Correct Option is B

Following will not give iodoform reaction test.  
(1) Butanal 
(2) 2-Pentanone 
(3) Pentanal 
(4) 3-Pentanol