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JEE Main & Advanced JEE Main Paper Phase-I (Held on 08-1-2020 Morning)

  • question_answer
    A graph of vapour pressure and temperature for three different liquids X, Y, and Z is shown below
    The following inferences are made                            
    (A) X has higher intermolecular interactions compared to Y.
    (B) X has lower intermolecular interactions compared to Y
    (C) Z has lower intermolecular interactions compared to Y.
    The correct inferences is/are
    [JEE MAIN Held On 08-01-2020 Morning]

    A) (B)                   

    B) (C)

    C) (A) and (C)

    D) (A)

    Correct Answer: A

    Solution :

    Vapour pressure of a liquid at a given temperature is inversely proportional to intermolecular force of attraction. At the same temperature, vapour pressure of X is higher than that of Y. Therefore (X) has lower intermolecular interactions compared to Y. Statement is correct.


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