Question

Tertiary butyl Bromide has lower boiling point then n- butyl Bromide

Answer 1

 n-butyl bromide has a high boiling point than tertbutyl bromide
because:
1) The boiling point decreases with increase in branching. This is because molecule becomes more spherical with less surface area.
2)As a result, intermolecular forces become weaker resulting in a lower boiling point.

Answer 2

Tertiary butyl Bromide has lower boiling point than n butyl Bromide due to the following reasons:

- With the increase in branching the boiling point of an element decreases this is because with less surface area it becomes more spherical.

- n - butyl Bromide have stronger intermolecular forces because and butyl Bromide is a straight chain molecule.

- Whereas tertiary butyl Bromide has a weaker intermolecular forces because it is a branch to molecule and has lower surface area.

- As a result intermolecular forces becomes weaker resulting in a lower boiling point.

- Thus, n -butyl Bromide have higher boiling point than that of tertiary butyl Bromide.