Q. Which compound will have highest boiling point?
A) $CH_{4}$
B) $CH_{3}OH$
C) $C_{2}H_{5}OH$
D) $HCHO$
Explanation
(c)
The boiling point of alcohols is higher than the boiling points of corresponding alkanes and aldehydes due to H-bonding. As the molecule mass increases, boiling point increases.
Thus, $C_{2}H_{5}OH$ has the higher boiling point among the given.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.