Sponsor Area

Haloalkanes And Haloarenes

Question
CBSEENCH12007691

Why halogens delocalize electrons in the benzene ring in the order F > Cl > Br > I?

Solution
The smaller is the halogen atom, the shorter is the C-halogen bond and the more effective is the overlap of p-orbitals by extended straight pi bonding. Hence, the smaller the halogen atom, the more extensive is delocalization.