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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: - Copper occurs naturally as Cu-63 and Cu-65. Given Atomic Weight
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- If N and S both are present in an organic compound then during Lassaigne’s test,
- If Nₐ is Avagadro number then number of valence electrons in 4.2g of nitride
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Topics: Haloalkenes and Haloarenes
(78)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Copper occurs naturally as Cu-63 and Cu-65. Given Atomic Weight
- Temperature coefficient of a reaction is 2. When temperature is increased
- If N and S both are present in an organic compound then during Lassaigne’s test,
- If Nₐ is Avagadro number then number of valence electrons in 4.2g of nitride
- Equivalent conductances of Ba²⁺ and Cl⁻ ions are 127 and 76 ohm⁻¹ cm⁻¹ eq⁻¹
Topics: Haloalkenes and Haloarenes (78)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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