J & K CET Engineering J and K - CET Engineering Solved Paper-2007

  • question_answer
    Intermolecular hydrogen bonding exists in

    A) \[~o-\] nitrophenol

    B)  \[~o-\]chlorophenol

    C)  water

    D)  ammonium chloride

    Correct Answer: C

    Solution :

     Intermolecular H-bonding takes place between H and electronegative element present in the different molecules of same substance, eg,\[{{\text{H}}_{\text{2}}}\text{O,HF}\text{.}\] \[\underset{\text{H}-\text{bonding}\,\text{in}\,\text{water}}{\mathop{\overset{\delta +}{\mathop{H}}\,-\underset{H}{\mathop{\underset{|}{\mathop{\overset{\delta -}{\mathop{O}}\,}}\,}}\,...\overset{\delta +}{\mathop{H}}\,-\underset{H}{\mathop{\underset{|}{\mathop{\overset{\delta -}{\mathop{O}}\,}}\,}}\,...\overset{\delta +}{\mathop{H}}\,-\underset{H}{\mathop{\underset{|}{\mathop{\overset{\delta -}{\mathop{O}}\,}}\,}}\,...\overset{\delta +}{\mathop{H}}\,-\underset{H}{\mathop{\underset{|}{\mathop{\overset{\delta -}{\mathop{O}}\,}}\,}}\,}}\,\]


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