Which compounds give a positive iodoform test?
Asked by Mohd Rafiq · 2 years ago
I am confused about which specific compounds give a positive iodoform test. Can someone list the types of compounds that will show a positive result?
1 Answer
A positive iodoform test is given by compounds that have the structure CH3CO- or CH3CH(OH)-. Specifically, this includes:
- Methyl ketones (e.g., acetone, CH3COCH3)
- Alcohols that can be oxidized to methyl ketones (e.g., ethanol, CH3CH2OH)
- Some secondary alcohols with a methyl group in the alpha position (e.g., isopropanol, CH3CH(OH)CH3)
When these compounds are treated with iodine and sodium hydroxide, they form a yellow precipitate of iodoform (CHI3), indicating a positive test.
NEET Faculty · 2 years ago
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