Which process is used to separate o-nitrophenol and p-nitrophenol?
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → Steam distillation
NCERT (2026-27 edition):
7.4.4 Chemical Reactions – “The ortho and para isomers can be separated by steam distillation. o-Nitrophenol is steam volatile due to intramolecular hydrogen bonding while p-nitrophenol is less volatile due to intermolecular hydrogen bonding which causes the association of molecules.”