BVP Medical BVP Medical Solved Paper-2008

  • question_answer
    Out of the two compounds shown below, the vapour pressure of B at a particular temperature is expected to be   and     

    A)  higher than that of A

    B) lower than that of B

    C)  same as that of A                         

    D)  can be higher or lower depending upon the size of the vessel.

    Correct Answer: A

    Solution :

                    Due   to   intramolecular \[H-\]bonding  in o-nitrophenol it exists as a monomer while due to intermolecular H-bonding in p-nitrophenol it exists as an associate molecule. As a result, vapour pressure of a o-nitrophenol is higher than that of p-nitrophenol.


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