BVP Medical BVP Medical Solved Paper-2004

  • question_answer
    p-nitrophenol and o-nitrophenol are separated by:

    A)  crystallization

    B)  fractional crystallization

    C)  distillation

    D)  steam distillation

    Correct Answer: D

    Solution :

                    o-nitrophenol    has    intra molecular hydrogen bonding, while p-nitrophenol has intermolecular hydrogen bonding (comparitively stronger). Due to this reason, the boiling point of o-nitrophenol is   found   quite   less   than   that of p-nitrophenol. Hence, o-nitrophenol is   steam   volatile   and   can  be separated from p-nitrophenol by steam distillation.


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