WB JEE Medical WB JEE Medical Solved Paper-2013

  • question_answer
    Which one of the following molecules contain no \[\pi -\]bond?

    A) \[C{{O}_{2}}\]           

    B) \[{{H}_{2}}O\]

    C)  \[S{{O}_{2}}\]

    D)  \[N{{O}_{2}}\]

    Correct Answer: B

    Solution :

     All the molecules have 0 atom with lone pairs, but in \[{{H}_{2}}O\]the H atom has no vacant orbital for \[\pi \]bonding. Thats why it does not have any n bond. In all other given molecules, the central atom because of the presence of vacant orbitals is capable to farm n bonds.


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