Question

Iodoform can be prepared from all except:

• A. Isopropyl alcohol
• B. 3-methyl-2-butanone
• C. Isobutyl alcohol
• D. Ethyl methyl ketone

Hint:

The iodoform reaction forms iodoform from compounds that contain the -CH\(_3\)CO group (methyl ketones or secondary alcohols).

Answer 1

The Correct Option is C

Step 1: Understand iodoform reaction.
Iodoform is formed by the reaction of compounds containing a methyl group adjacent to a carbonyl group (like in methyl ketones or secondary alcohols).

Step 2: Identify the compound that doesn't form iodoform.
Isobutyl alcohol does not contain a structure that can undergo the iodoform reaction.
It lacks the necessary group (CH\(_3\)-CO) needed for the reaction.