RAJASTHAN PMT Rajasthan - PMT Solved Paper-2007

  • question_answer
    \[PC{{l}_{3}}\] is possible but \[NC{{l}_{5}}\] does not exist

    A) in \[N,\,\,d-\]sub-shell is absent

    B)        ionization energy of \[N\] is very high

    C)        it does not like\[Cl\]

    D)        none of the above

    Correct Answer: A

    Solution :

    Nitrogen cannot form pentahalides because it cannot expand its octet due to non-availability of \[d-\]orbitals.


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