1 Chemical Bonding and Molecular Structure
Ortho-Nitrophenol is less soluble in water than p- and m- Nitrophenols because: 1) o-Nitrophenol is more volatile steam than those of m- and p-isomers. 2) o-Nitrophenol shows intramolecular H-bonding 3) o-Nitrophenol shows intermolecular H-bonding 4) Melting point of o-Nitrophenol is lower than those of m- and p-isomers.
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