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<p><p>Benzene and other organic compounds which resemble it in chemical behaviour exhibit certain characteristics properties which distinguish them from aliphatic compounds. Such characteristics properties called aromaticity.

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12y ago
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6mo ago

Aromaticity is a concept in organic chemistry where a molecule contains a ring of conjugated pi electrons that gives it extra stability compared to a non-aromatic molecule. Aromatic compounds tend to be more stable and have unique reactivity patterns. Examples of aromatic compounds include benzene and pyridine.

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12y ago

Aromatic character, when cooking but also when you're talking about anything that smells (hopefully delicious), just refers to the smell. Is it strong? Is it subtle? Is it homey, powerful, fragrant, floral, thick, pungent, etc? Basically, any adjective you can think of can be used to describe a smell, and also the power or intensity of the smell.

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11y ago

aromaticity is a property of any compound being aromatic. A compound is said to be aromatic if it has 1) planarity, 2) complete delocalisation of the pi electrons in the ring, 3)presence of (4n + 2) pi electrons in the ring where n is non negative integer.

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Q: What is aromaticity?
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Are benzenes pi bonding electrons delocalized over the entire carbon ring?

Yes, the pi bonding electrons in benzene are delocalized over the entire carbon ring. This leads to a more stable structure and contributes to the aromaticity of benzene.


How do you make ignition test of organic compound?

The Ignition test is a test for aromaticity. One takes a sample of their unknown, places it in an open flame and observes what happens. The presence of an aromatic ring will usually lead to the production of a sooty yellow flame in the test.


Why is benzene undergoes electrophilic reaction rather then nucleophilic reaction?

Benzene predominantly undergoes electrophilic reactions because its aromatic structure stabilizes the developing positive charge on the carbon atoms during the reaction. The delocalized electron cloud in benzene makes it less reactive towards nucleophiles which prefer to attack electrophilic centers. This electronic stability of benzene is known as aromaticity.


Why the benzene ring is not much reactive as the pyrrole?

The benzene ring is less reactive than pyrrole because it is very stable due to its aromaticity. The delocalization of pi electrons in the benzene ring creates a high resonance energy, making it less inclined to undergo reactions. In contrast, pyrrole is more reactive because it is not fully aromatic and has more reactive sites available for bonding.


Why pyrrole is a weak base?

Pyrrole is a weak base because its lone pair of electrons is delocalized within the aromatic ring, making it less available to accept a proton. Additionally, the presence of the aromatic ring stabilizes the conjugate acid formed after accepting a proton, reducing the willingness of pyrrole to act as a base.

Related questions

Illustrate the difference between aromaticity and antiaromaticity with appropriate examples?

Illustrate the difference between aromaticity and antiaromaticity with appropriate examples?


How is huckel rule applied in determining aromaticity?

Huckel's rule is used in aromaticity by stating that monocyclic systems are aromatic. This will happen if there are delocalized electrons.


Is resonance involved in aromaticity?

Yes, resonance is a key factor in defining the stability and aromaticity of aromatic compounds. Aromaticity arises from the delocalization of pi electrons throughout a cyclic system and is supported by resonance structures that distribute the electrons evenly among the ring atoms. The presence of resonance leads to enhanced stability of aromatic molecules.


Aromaticity in non benzenoid compounds?

Aromaticity in non-benzenoid compounds refers to the presence of a cyclic system that follows Huckel's rule (4n+2 pi electrons) and exhibits properties of aromaticity, such as enhanced stability and unique reactivity. Examples include cyclopentadienyl anion (C5H5-) and cyclooctatetraene (C8H8), which possess aromatic character despite not having a benzene ring.


What an aromatic compound?

An aromatic compound is a compound in organic chemistry which exhibits aromaticity.


Is cyclohexadiene aromatic?

Cyclohexadiene is not aromatic because it does not follow the criteria for aromaticity, such as having a planar ring with a continuous cycle of p orbitals and fulfilling the Huckel's rule (4n+2 pi electrons). Cyclohexadiene has 6 pi electrons, which is not in accordance with the rule for aromaticity.


Is benzoquinone aromatic?

No - although it has sufficient electrons to obey the Huckel rule (4n+2) pi electrons. The two olefins in the ring are cross-conjugated through the carbonyl groups. The lack of proper conjugation precludes aromaticity. The non aromaticity is evidenced by different bond-lengths around the ring


What is quasi aromaticity?

Quasi aromatic compounds are ionic in nature, there is a presence of counter ion e.g. when tropone react with HClO4 quasi aromatic compound is formed.


What herb can you use instead of oregano?

The herb closest in flavor to oregano is probably marjoram, which is in the same family. It is subtler, though, and lacks the in-your-face aromaticity of oregano.


Why haloaranes are much less reactive than haloalkanes towards nuclophillic substitution rxn?

Haloarenes are less reactive than haloalkanes towards nucleophilic substitution reactions because the aromaticity of the benzene ring in haloarenes provides extra stability to the molecule. This stability reduces the likelihood of breaking the aromaticity of the ring during the substitution reaction. In contrast, haloalkanes do not possess this extra stabilization, making them more prone to undergo nucleophilic substitution reactions.


What is the general formula of an aromatic?

The general formula for an aromatic compound is CnHn, where &quot;n&quot; represents the number of carbon and hydrogen atoms required to satisfy the compound's aromaticity.


Are benzenes pi bonding electrons delocalized over the entire carbon ring?

Yes, the pi bonding electrons in benzene are delocalized over the entire carbon ring. This leads to a more stable structure and contributes to the aromaticity of benzene.