P Block Elements Question 312

Which has the highest molar heat of vaporization

[CPMT 1991]

Options:

A) $ HF $

B) $ HCl $

C) $ HBr $

D) $ HI $

Show Answer

Answer:

Correct Answer: D

Solution:

In case of HI due to large size of iodine strong van der Waals forces are present. Hence, it has highest molar heat of vaporisation.

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