Question

why 2'2 dimethyl. propane is more stable than the n-pentane​

Answer 1

Answer:

Pentane has a high boiling point because it is straight-chain isomer whereas 2,2-dimethylpropane is branched-chain due to which the molecule attains the shape of a sphere.

Thus, results in a smaller area of contact and therefore weak intermolecular forces.

Hence, the correct answer is option B.