Q.
The most suitable method of separation of 1 : 1 mixture of ortho and para-nitrophenols is
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a
chromatography
b
crystallisation
c
steam distillation
d
sublimation.
answer is C.
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Detailed Solution
The o - and p -nitrophenols are separated by steam distillation since o -isomer is steam volatile due to intramolecular H -bonding while p -isomer is not steam volatile due to association of molecules by intermolecular H-bonding.
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