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    Aromaticity - Practice Questions & MCQ

    Edited By admin | Updated on Sep 18, 2023 18:35 AM | #JEE Main

    Quick Facts

    • 35 Questions around this concept.

    Solve by difficulty

    Which of the following is most stable?

    Which among the following is the strongest acid?

    Identify A in the given chemical reaction:

    Which is a non-benzenoid aromatic compound?

    Which of the following is not an example of benzenoid compound? 

    Which of the following compounds is not aromatic ?

    Which of the following molecule/species is most stable?

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    Which of the following are aromatic?

    Which of the following molecules is the least resonance stabilized?

     

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    Which of the following compounds is aromatic alcohol?

     

    Concepts Covered - 1

    Aromaticity

    Aromaticity is defined as "An aromatic compound having a cyclic planar structure with (4n+2)\mathrm{\pi} electrons and have high resonance energy and stability due to delocalization of \mathrm{\pi} electrons." Any compound is aromatic if the following conditions are fulfilled:

    • It has complete delocalization of \mathrm{\pi} electrons.
    • Has a high resonance energy.
    • Has a conjugate system.
    • Has number of \mathrm{\pi} electrons according to 4n +2 or Huckel's rule that is, 2,6,10,14,18. Here, n = 0,1,2 ....
    • If number of \mathrm{\pi} electrons 4 "n' i.e., 4, 8, 12, 16, it will be anti-aromatic.
    • If any of these conditions is not obeyed it will be non-aromatic.

    Some example of aromatic compound include

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    Books

    Reference Books

    Aromaticity

    Chemistry Part II Textbook for Class XI

    Page No. : 399

    Line : 47

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