What effect does branching of an alkane chain | vedclass

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(B) $Alkanes$ experience intermolecular $Van \ der \ Waals$ forces. The stronger the force,the greater will be the boiling point of the $alkane$.As br

Vedclass · Accepted Answer

It decreases the boiling point.

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(B) $Alkanes$ experience intermolecular $Van \ der \ Waals$ forces. The stronger the force,the greater will be the boiling point of the $alkane$.As branching increases,the surface area of the molecule decreases,which results in a smaller area of contact.As a result,the $Van \ der \ Waals$ force also decreases,which can be overcome at a relatively lower temperature.Hence,the boiling point of an $alkane$ chain decreases with an increase in branching.

What effect does branching of an alkane chain have on its boiling point?

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