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  3. CEE Kerala Engineering

CEE Kerala Engineering CEE Kerala Engineering Solved Paper-2010

  • question_answer
    Halogens exist in\[-1,+\text{ }1,+3,+5\]and +7 oxidation states. The halogen that exists only in\[-1\]state is

    A)  \[F\]                                    

    B)  \[Cl\]

    C)  \[Br\]                  

    D)         \[I\]

    E)  \[At\]

    Correct Answer: A

    Solution :

    Fluorine atom has no d-orbitals in its valence shell, therefore cannot expand its octet and thus, does not exhibit variable oxidation states. Being the most electronegative, it exhibits only -1 oxidation state.


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