P-Block Elements Ques 132
Question: Which has the highest molar heat of vaporisation
[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 Vander Waal forces are present. Hence, it has highest molar heat of vaporisation.