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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: - The coordination number and oxidation state number of Cr in K₃ Cr (C₂O₄)₃
- The equivalent weight of H₃PO₂, when it disproportionates into PH₃ and H₃PO₃ is
- A hydrocarbon contains 20% hydrogen and 80% carbon.The empirical formula is
- Which of the following gives methane on hydrolysis
- If the value of an equilibrium constant for a particular reaction is 1.6 ˣ 10¹²,
Topics: Haloalkenes and Haloarenes
(78)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The coordination number and oxidation state number of Cr in K₃ Cr (C₂O₄)₃
- The equivalent weight of H₃PO₂, when it disproportionates into PH₃ and H₃PO₃ is
- A hydrocarbon contains 20% hydrogen and 80% carbon.The empirical formula is
- Which of the following gives methane on hydrolysis
- If the value of an equilibrium constant for a particular reaction is 1.6 ˣ 10¹²,
Topics: Haloalkenes and Haloarenes (78)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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