COMPASSLearning
RegisterLogin

CBSE Class 12 · 2006 · Foreign · Compounds Containing NitrogenVery Short Answer

WhatsApp Email
Give a chemical test to distinguish between a primary and a secondary amine.

Answer: Carbylamine test: the 1° amine + CHCl₃/alc. KOH gives the foul isocyanide; the 2° amine does not.

Solution

Heat with chloroform and alcoholic KOH:

Only primary amines give the offensive isocyanide smell; secondary amines stay silent.

CBSE Class 12 Board · 2006 · Foreign · Subjective

Practise more: all CBSE board PYQs on Compounds Containing Nitrogen →

More board questions on Compounds Containing Nitrogen

  1. The correct name of the given reaction is
    CBSE 2024View solution →
  2. (a) Carry out the following conversions:
    (i) nitrobenzene to aniline
    (ii) aniline to phenol
    CBSE 2024View solution →
  3. (b)(i) Write a chemical test to distinguish between dimethylamine and ethanamine.
    (ii) Write the product formed when benzenediazonium chloride is treated with KI.
    CBSE 2024View solution →
  4. A compound 'X' with molecular formula C₃H₉N reacts with C₆H₅SO₂Cl to give a solid insoluble in alkali. Identify 'X' and give the IUPAC name of the product. Write the reaction involved.
    CBSE 2024View solution →
  5. Amides can be converted into amines by the reaction named:
    CBSE 2023View solution →
  6. Which of the following would not be a good choice for reducing nitrobenzene to aniline?
    CBSE 2023View solution →