Question

Rank these compounds by boiling point- Pentane, Propane and Hexane.
A) Pentane > Propane > Hexane B) Propane > Pentane > Hexane C) Hexane > Pentane > Propane D) Propane > Hexane > Pentane

Answer 1

Answer:

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Explanation:

• Pentane is straight chain alkane and neopentane is branched chain alkane with same molar mass. .

• Hexane will have greater van der Waals forces of attraction than pentane. So boiling point of hexane is greater than boiling point of pentane, that is boiling point (hexane) > boiling point (pentane).

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