Question

what is bond order of benzene??????​

Answer 1

Benzene is an aromatic cyclic compound, and hence, has resonance structures. In this compound, 6 pi electrons are shared by 6 carbon atoms; every carbon has half a pi bond and one sigma bond. Thus, the bond order of benzene is 1.5 for each bond.

Answer 2

The C-C π Bonds   The six π electrons go into the three bonding orbitals. This is the π bond order for 6 C-C bonds. For one C-C π bond, BO = 3/6 = 0.5. For a single C-C bond in benzene, the total BO = σ + π = 1 + 0.5 = 1.5.