NEETChemistryHydrocarbons
Why does 2,2-dimethylpropane have a lower boiling point than pentane?
Options
- AIt has a lower molecular mass.
- BIt has stronger hydrogen bonding.
- CIt has a linear shape.
- DIt has a spherical shape with fewer points of contact.
Correct answer
D. It has a spherical shape with fewer points of contact.
Step-by-step solution
2,2-dimethylpropane has a lower boiling point than pentane because its spherical shape reduces the surface area of contact, leading to weaker intermolecular forces.