Question
Question: The most volatile compound among the given option is...
The most volatile compound among the given option is

A
o-nitrophenol
B
p-nitrophenol
C
m-nitrophenol
D
can't say
Answer
o-nitrophenol
Explanation
Solution
o-nitrophenol exhibits intramolecular hydrogen bonding, which reduces intermolecular forces between molecules. p-nitrophenol and m-nitrophenol primarily form intermolecular hydrogen bonds, leading to stronger intermolecular forces and molecular association. Weaker intermolecular forces in o-nitrophenol result in a lower boiling point and higher volatility compared to m- and p-nitrophenol.