JEE Main Chemistry question

The boiling points of halogens increase with increase in molecular weight; this is because:

(A)As the size increases, molecules undergo association leading to higher stability
(B)Bond strength increases due to increase in electronegativity
(C)Van der Waals' forces increase with increase in the number of electrons per moleCorrect
(D)None of the above

Answer: (C)

Solution

Boiling point of the halogens is governed by the strength of intermolecular van der Waals (London dispersion) forces, which increase as

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Question ID VK-146918