Which from following has highest boiling point?

Step-by-step solution

Boiling point increases with the number of carbon atoms and decreases with an increase in branching of alkanes. n-pentane, having five carbon atoms in a straight chain, shows the highest boiling point. Thinking Hatke - Q. 43 Ethers of comparable masses have higher boiling points than their corresponding alkanes due to weak dipole-dipole interactions.