1. Tardigrade
  2. Question
  3. Chemistry
  4. Which of the following has highest boiling point?

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. Which of the following has highest boiling point?

AMUAMU 2000

Solution:

Amines are polar compounds and with the exception of tertiary amines can form intermolecular hydrogen bonding. As a result amines have higher boiling points.
Among the isomeric amines the primary and secondary amines have highest boiling point due to formation of $H$-bonds. Whereas tertiary amines have lowest boiling point because of their inability to form $H$-bonds. The boiling point of primary amine is greater than secondary.
image
But in $NH _{2} CH _{2} CH _{2} NH _{2}$ two amine groups are attached on both side therefore, H-bonding is maximum in this compound. Hence, its boiling point is highest.
image