Class XII

IUPAC name of CH3CHO is
  1. None of the above
  2. Formaldehyde
  3. Acetaldehyde
  4. Ethanal
Which of the following reagents can be used to convert a carboxylic acid directly into its corresponding acid chloride derivative?
  1. (COCl)2
  2. NaOCl
  3. CH3COCl
  4. HCl
Aldehydes are produced on reduction of the following by DIBAL – H
  1. nitriles
  2. esters
  3. none of these
  4. Both nitriles and esters
In Hell – Volhard Zelinsky reaction, halogen reacts with
  1. ketones
  2. ethers
  3. carboxylic acids
  4. aldehydes
Aldehydes are prepared by reducing nitriles to corresponding imines with stannous chloride in the presence of hydrochloric acid. This reaction is called
  1. Etard reaction.
  2. Friedel – Crafts reaction
  3. Stephen reaction
  4. Gatterman – Koch reaction
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