JEE Main & Advanced JEE Main Paper (Held On 9 April 2017)

  • question_answer
    The increasing order of the boiling points for the following compounds is: [JEE Online 09-04-2017] (I) \[{{C}_{2}}{{H}_{5}}OH\]                         (II) \[{{C}_{2}}{{H}_{5}}Cl\] (III) \[{{C}_{2}}{{H}_{5}}C{{H}_{3}}\]                        \[{{C}_{2}}{{H}_{5}}OC{{H}_{3}}\]

    A)  (IV) < (III) < (I) < (II)      

    B)  (III) < (II) < (I) < (IV)

    C)  (III) < (IV) < (II) < (I)      

    D)  (II) < (III) < (IV) < (I)

    Correct Answer: C

    Solution :

      B.P. \[\propto \] dipole moment \[\propto \] H-bonding \[{{C}_{2}}{{H}_{5}}C{{H}_{3}}<{{C}_{2}}{{H}_{5}}OC{{H}_{3}}<{{C}_{2}}{{H}_{5}}Cl<{{C}_{2}}{{H}_{5}}OH\]


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