NEETChemistryHydrocarbons
What is the trend in boiling points of alkanes as molecular size or surface area increases?
Options
- ABoiling points decrease
- BBoiling points remain constant
- CBoiling points increase
- DBoiling points follow an unpredictable pattern
Correct answer
C. Boiling points increase
Step-by-step solution
The boiling points of alkanes increase with an increase in molecular size or surface area due to the stronger intermolecular van der Waals forces.