Hydrocarbons Question 323
Question: In paraffins, with the increasing molecular weight, it is found that [CPMT 1974]
Options:
A) Freezing point decreases
B) Boiling point decreases
C) Boiling point increases
D) Vapour pressure decreases
Show Answer
Answer:
Correct Answer: C
Solution:
Paraffins are non-polar compounds.
The intermolecular forces are weak Vander Waal’s forces.
As the molecular mass increases Vander Waal’s forces increases.
Hence boiling point increases.