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Which of the following compounds gives trichloromethane on distilling with bleaching powder
Options
(a) Methanal
(b) Phenol
(c) Ethanol
(d) Methanol
Correct Answer:
Ethanol
Explanation:
Alcohol is first oxidised to acetaldehyde by chlorine. [Cl₂ + H₂O → 2HCl + O]. CH₃CH₂OH + O → CH₃CHO + H₂O. (ii) Acetaldehyde then reacts with chlorine to form chloral. CH₃CHO + 3Cl₂ → CCl₃ CHO + 3HCl.(iii) Chloral, thus formed, is hydrolysed by calcium hydroxide. CCl₃CHO + Ca(OH)₂ → 2CHCl₃ + (HCOO)₂Ca.
Related Questions: - The correct order of decreasing acidic nature of H₂O,ROH,CH≡CH and NH₃ is
- In the brown ring test for the nitrate ion, the brown colour is due to
- Which of the following is more acidic in nature
- Copper pyrite, the chief ore of copper, is
- The coordination number of an atom in the simple cubic unit cell in a crystal lattice
Topics: Haloalkenes and Haloarenes
(78)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The correct order of decreasing acidic nature of H₂O,ROH,CH≡CH and NH₃ is
- In the brown ring test for the nitrate ion, the brown colour is due to
- Which of the following is more acidic in nature
- Copper pyrite, the chief ore of copper, is
- The coordination number of an atom in the simple cubic unit cell in a crystal lattice
Topics: Haloalkenes and Haloarenes (78)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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