Question

Why does benzene only undergo substitution reactions?

Answer 1

Hey !

Here is your answer !!

The benzene ring is very stable because of its delocalised electrons. It is because of this that it doesn't usually undergo additionreactions as it would disrupt the delocalisation and therefore will reduce its stabilty

Answer 2

Benzene undergoes substitution rather than addiditon reactions because addition reactions disrupt the delocolisation of the pi molecular orbital which then results in the stability of the benzene compound being reduced whereas substitution reactions only cause temporary disruption and so the stability of the benzene ...