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Amines — Chemistry STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceChemistryAmines1 Mark
MCQ
The correct statement among the following is:
  • A
    Boiling point of amine is more than that of alcohol of nearly same molecular mass.
  • B
    The solubility of amines in water increases with increase in molecular mass.
  • C
    The order of boiling point of isomeric amines is primary > secondary > tertiary.
  • D
    None of these
✓

Answer

  1. The order of boiling point of isomeric amines is primary > secondary > tertiary.

Explanation:

  1. Boiling point of amines have high boiling point due to presence of hydrogen bonding between amine molecules.
  2. But the boiling point decreases with increase in alkyl groups attached to the N atom, because the number of H atoms present for hydrogen bonding decreases.

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