Chapter 18, Problem 18.1P

Interpretation Introduction

Interpretation: The reason corresponding to the fact that the benzene is less reactive toward electrophiles than an alkene, even though it has more π electrons than an alkene is to be stated.

Concept introduction: Benzene is an aromatic compound. It has $\text{6π}$ electrons. It is a stable compound due to the resonance. The molecular formula of benzene is ${\text{C}}_{\text{6}}{\text{H}}_{\text{6}}$.

Answer to Problem 18.1P

The benzene is less reactive toward electrophiles than an alkene because of its stability and aromaticity.

Explanation of Solution

Benzene is an aromatic compound. A non-aromatic compound is formed by the addition reaction of benzene. It gives an unstable product. Benzene undergoes substitution reaction because the aromaticity of benzene does not get affected. Hence, benzene is less reactive toward electrophiles than an alkene because of its stability and aromaticity.

Conclusion

The benzene is less reactive toward electrophiles than an alkene because of its stability and aromaticity.