Question

The correct order of boiling point of primary (1°), secondary (2°) and tertiary (3°) alcohols is
(a) 1° > 2° > 3°
(b) 3° > 2° > 1°
(c) 2° > 1° > 3°
(d) 2° > 3° > 1°

Answer 1

Answer:

Correct option is

A

1degree >2 degree >3 degree

The presence of −OH groups in a compound leads to Hydrogen-bonding which greatly increases its boiling. Generally, the more 'exposed' the −OH group, the better it can participate in intermolecular H-bonding and thus, the boiling point will elevate. By that logic, primary alcohols will have the highest boiling point while tertiary alcohols will have the lowest boiling point.

1°>2°>3°

Thanks