Question
Question: Which of the following hydrogen halide is most volatile....
Which of the following hydrogen halide is most volatile.
A
HCl
B
HF
C
HI
D
HBr
Answer
HCl
Explanation
Solution
HF has highest boiling point on account of intermolecular hydrogen bonding. But from HCl to HI the boiling point show a regular increase due to a corresponding increase in the magnitude of van der Waal's force of attraction as the size of the halogen increases.