CBSE Class 11-science Answered
Why Ortho Nitrophenol has less boiling point than paranitrophenol?
Asked by | 03 Feb, 2012, 08:34: PM
Expert Answer
p-nitro phenol, is capable of forming intermolecular hydrogen bonding between, while o-nitrophenol forms intramolecular H-bond.
There is significant change in the molecular weight of substances when intermolecular hydrogen bonds are formed. This in turn, increases its boiling point as well.
There is significant change in the molecular weight of substances when intermolecular hydrogen bonds are formed. This in turn, increases its boiling point as well.
In p-nitrophenol, as there are intermolecular hydrogen bonding, it increases the molecular weight, whereby increasing the boiling point. So o-nitrophenol has less boiling point compared to p-nitrophenol.
Answered by | 04 Feb, 2012, 10:05: AM
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