Pyridine like benzene, has six `pi` -electrons in delocalized `pi` -orbitals, but unlike benzene the orbitals will be deformed as electrons are more attracted towards the nitrogen atom because of its high electro negativity. This is reflected in the dipole of pyridine which has the negative end on N and the positive end on the nucleus. We can compare the respective properties of benzene, pyridine, pyrrole, furan and thiophene, which very frequently give aromatic electrophilic and nucleophilic substitution reactions in different positions.
Arrange the following in increasing order of aromatic character.

Options

A. `igtivgt iii gt ii`
B. `iii gt igt ii gt iv `
C. `iv gt igt iii gt ii`
D. `igt ii gt iii gt iv `

Answer

A

Explanation

Furan `gt` Pyrole `gt` Pyridine (Hetero atomic aromatic compounds) Benzene is more aromatic than hetero atomic.
Benzene `gt` Furan `gt` Pyrole `gt` Pyridine.