Which of the following reactions is inconsistent with the assertion that benzene

Question

Which of the following reactions is inconsistent with the assertion that benzene is aromatic? Br_2/CCl_4/25 degreeC right arrow no reaction H_2/Pu/25 degreeC rightarrow no reaction Br_2/FeBr_3 right arrow C_6H_5Br + HBr KMnO_4/H_2O/25 degree C right arrow no reaction None of the above Which is the correct name of the compound shown? 3-Chloro-5-nitrotoluene m-Chloro-m-nitrotoluene 1-Chloro-3-nitro-5-toluene m-Chloromethylnitrobenzene More than one of these Which is the correct name of the compound shown? 2-Fluoror-1-hydroxyphenylbenzene 2-Fluoro-4-phenylphenol m-Fluoro-p-hydroxybiphenyl o-Fluoro-p-phenylphenol More than one of these Which of the following molecules or ions is not aromatic according to Hackel's rule?

Explanation / Answer

4. option e. Aromaticity is a term used to describe a cyclic (ring-shaped), planar (flat) molecule that exhibits unusual stability as compared to other geometric or connective arrangements of the same set of atoms. Mentioned reactions are not related to this concept.

5. Opcion a. polysubstituted derivatives of benzene are named such that the substituents have low numbers location. The o- and p- m- nomenclature is used only for disubstituted benzenes

6.Opcion b. polysubstituted derivatives of benzene are named such that the substituents have low numbers location. The o- and p- m- nomenclature is used only for disubstituted benzenes

7.opcion b. 4 electrons pi (fails relation 4n+2)

Hückel's rule: moleculas having 4n+2 electrons in the delocalized, conjugated p-orbital cloud;
the molecule must be able to be planar;
the molecule must be cyclic; and,
every atom in the ring must be able to participate in delocalizing the electrons by having a p-orbital or an unshared pair of electrons.

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