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Chemistry · PYQ NEET UG 2017

हिन्दी

The most suitable method of separation of 1:1 mixture of ortho and para-nitrophenol is

  1. chromatography
  2. crystallisation
  3. steam distillation
  4. sublimation

Correct answer · Option 3

steam distillation

Explanation

Ortho-nitrophenol is steam volatile due to intramolecular hydrogen bonding, whereas para-nitrophenol is not steam volatile due to intermolecular hydrogen bonding.
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