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JEE Main 2011
Exam
JEE Main
Year
2011
Subject
Chemistry
Chapter
Aldehydes and Ketones

JEE Main 2011 · Chemistry · Aldehydes and Ketones

Trichloroacetaldehyde was subjected to Cannizzaro's reaction by...

Trichloroacetaldehyde was subjected to Cannizzaro's reaction by using NaOH\mathrm{NaOH}. The mixture of the products contains sodium trichloroacetate and another compound. The other compound is :

Options

  1. ATrichloromethanol
  2. B2, 2, 2-Trichloropropanol
  3. CChloroform
  4. D2, 2, 2-Trichloroethanol

Correct answer

D. 2, 2, 2-Trichloroethanol

Step-by-step solution

2CCl3CHO⟶OH(−)CCl3COONa+CCl3CH2OH2 \mathrm{CCl}_3 \mathrm{CHO} \stackrel{\mathrm{OH}^{(-)}}{\longrightarrow} \mathrm{CCl}_3 \mathrm{COONa}+\mathrm{CCl}_3 \mathrm{CH}_2 \mathrm{OH} Cannizaro reaction is a disproportionation reaction One aldehyde molecule is oxidized to salt of the carboxylic Acid, other one is reduced to Alcohol. So the compound is CCl3CH2OH\mathrm{CCl}_3 \mathrm{CH}_2 \mathrm{OH} IUPAC Name is 2,2,2,−2,2,2,- Trichloro ethanol
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