Haloform Reaction
Haloform reaction is given by:
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About This Question
- Subject
- chemistry
- Chapter
- organic compounds containing halogens
- Topic
- haloform reaction
- Difficulty
- Medium
- Year
- 2025
Solution
Correct Answer:
Methyl ketones and ethanol
The Haloform Reaction identifies compounds containing the CH3−CO− (Acetyl) group or those that can be oxidized to it (CH3−CH(OH)− group).
- Methyl Ketones: R−CO−CH3 reacts with X2/NaOH to give CHX3 (Haloform).
- Ethanol and 2-Alcohols: CH3CH2OH and R−CH(OH)CH3 are oxidized by the halogen reagent to acetaldehyde/methyl ketone and then undergo the reaction.
- Iodoform Test (I2,NaOH): Gives a characteristic yellow precipitate of CHI3. It is a primary test in JEE organic chemistry.
This medium difficulty chemistry question is from the chapter organic compounds containing halogens, covering the topic of haloform reaction. It appeared in the 2025 exam.
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