wiz-icon
MyQuestionIcon
MyQuestionIcon
11
You visited us 11 times! Enjoying our articles? Unlock Full Access!
Question

Identify the correct order of boiling points of the following compounds:
1. CH3CH2CH2CH2OH
2. CH3CH2CH2CHO
3. CH3CH2CH2COOH

A
1>2>3
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
3>1>2
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
1>3>2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
3>2>1
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B 3>1>2
The boiling point of organic compounds depends on two factors:
i) Molecular weight: boiling point increases with increase in molecular weight.
ii) Intermolecular forces: higher the strengh of intermolecular forces, higher is the boiling point.

Butanoic acid forms extensive intermolecular hydrogen bonding than butanol. Carboxylic acids have the ability of forming a dimer by hydrogen bonding that leads to a stable arrangement. Hence, they have higher boiling points.
Butanal has a lower boiling point than the two due to comparitively weaker dipole-dipole interactions.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon