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In the reaction of phenol with CHCl₃ and aq.KOH the electrophile attacking the ring is
Options
(a) CHCl₃
(b) CHCl₂
(c) :CCl₂
(d) COCl₂
Correct Answer:
:CCl₂
Explanation:
The electrophile is dichloromethylene :CCl₂ generated from chloroform by the action of a base. OH⁻ + CHCl₃ ⇌ HOH + :CCl₃ → Cl⁻ + :CCl₂(Dichlorocarbene).
Related Questions: - When primary alcohol is oxidised with chlorine, it gives
- Hydrolysis of trichloromethane with aqueous KOH gives
- The case of adsorption of the hydrated alkali metal ions on an ion-exchange
- In the manufacture of ethanol from starch by fermentation,
- In an exothermic reaction
Topics: Haloalkenes and Haloarenes
(78)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- When primary alcohol is oxidised with chlorine, it gives
- Hydrolysis of trichloromethane with aqueous KOH gives
- The case of adsorption of the hydrated alkali metal ions on an ion-exchange
- In the manufacture of ethanol from starch by fermentation,
- In an exothermic reaction
Topics: Haloalkenes and Haloarenes (78)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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