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Question: Answered & Verified by Expert
Compare the boiling points of
1. n-butylamine
2. n-butyl alcohol
3. pentane
ChemistryChemical Bonding and Molecular StructureNEET
Options:
  • A 2 > 3 > 1
  • B 2 > 1 > 3
  • C 1 > 3 > 2
  • D 3 > 2 > 1
Solution:
2661 Upvotes Verified Answer
The correct answer is: 2 > 1 > 3
N is less electropositive than O, therefore, the H-bonds in the amine (1) are weaker than those in n-butyl alcohol. H-bonding is not possible in pentane (3). Here the boiling point order is as follows
(2) n-butyl alcohol > (1) n-butylamine > (3) pentane

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