Question

Which of the following is an aromatic compound?
A.Cyclohexane
B.Ethyne
C.Phenol
D.All of these

Answer 1

We have to know that aromatic compounds are substances that are composed of formed planar ring frameworks joined by delocalized pi-electron mists instead of individual rotating twofold and single bonds. They are additionally called aromatics or arenes. The best models are toluene and benzene.

Complete answer:
An aromatic compound contains a round arrangement of formed π bonds and p orbitals that contains $4n + 2$ electrons, where n is a number. This atom really embraces a non-planar calculation to keep away from anti-aromaticity. Cyclohexane is not an aromatic compound, despite the fact that it is roundabout: it does not have a formed electron framework.
Therefore, option (A) is incorrect.
When ethyne is also known as acetylene. This acetylene compound is non-aromatic.
Therefore, option (B) is incorrect.
A phenol can be characterized as a natural synthetic compound whose particles contain at any rate one hydroxyl bunch. These hydroxyl bunches should be joined to carbon particles. Additionally, in phenols, the hydroxyl bunch is straightforwardly attached to the aromatic ring and not the carbon molecule. Phenol is more acidic than alcohols because of adjustment of phenoxide particles through reverberation. Presence of electrons pulling out a bunch builds the corrosiveness of phenol by settling phenoxide particles while presence of electron delivering bunch diminishes the sharpness of phenol by destabilizing phenoxide particles.
Therefore, option (C) is correct.
Where, the aromatic compound is phenol. The anti-aromatic compounds are cyclohexane and ethyne.
So, that option (D) is incorrect.

Note:
We need to know that an aromatic compound initially named due to their fragrant properties, are unsaturated hydrocarbon ring structures that display exceptional properties, including surprising steadiness, because of their aromaticity. They are regularly addressed as reverberation structures containing single and twofold bonds.