The carbon-carbon bond order in benzene is

Options

A. 2
B. 1.5
C. 2
D. 1 and 2 (alternate)

Answer

2

Explanation

Bond order
`=("Number of bonds formed by C with other C atoms")/("Number of resonating structures")=(3)/(2)`
`=1.5`
Thus, the `C-` to `C` bonds order is 1.5.Kekule (1865) was the first to suggest a ring structure for benzene. In 1861, the Austrian chemist J.J. Loschmidt represented the benzene ring with a circle, but he made no attempt to indicate how the C atoms were actually arranged in the ring. Dewar (1867) suggested a number of formulas for benzene, one being . Landenburg proposed the prism formula for benzene