Among the three isomers of nitrophenols, the one that is least soluble in water is _____.
A
o-nitrophenol
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B
m-nitrophenol
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C
p-nitrophenol
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D
o-nitrophenol and p-nitrophenol
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Solution
The correct option is A o-nitrophenol Among the three isomers of nitrophenols, the one that is least soluble in water is o-nitrophenol due to formation of intramolecular hydrogen bonds. m-nitrophenol and p-nitrophenol form hydrogen bonds with water. Hence, they are more soluble.