Given below are two statements: Statement I : The boiling point of three isomeric pentanes follows the order. n-pentane isopentane neopentane Statement II : When branching increases, the molecule attains a shape of sphere. This results in smaller surface area for contact, due to which the intermolecular forces between the spherical molecules are weak, thereby lowering the boiling point. In the light of the above statements, choose the most appropriate answer from the options given below:

Question

Given below are two statements: Statement I : The boiling point of three isomeric pentanes follows the order. n-pentane > isopentane > neopentane Statement II : When branching increases, the molecule attains a shape of sphere. This results in smaller surface area for contact, due to which the intermolecular forces between the spherical molecules are weak, thereby lowering the boiling point. In the light of the above statements, choose the most appropriate answer from the options given below:

Dr. Abubacker · Accepted Answer

[Solution by Claude - not from source] Both are standard: more branching means a smaller surface area and weaker van der Waals forces, hence lower boiling point. Answer (3).

Explanation

Reviewed by Dr. Abubacker

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