Question

The carbon-carbon bond distance in benzene is

• A. longer than a ${C - C}$ single bond
• B. longer than a ${C= C}$ double bond
• C. shorter than a ${C = C}$ double bond
• D. shorter than a ${C = C}$ triple bond

Answer 1

Answer: (B)

longer than a ${C= C}$ double bond

Answer 2

$X$-ray data indicates that all the six ${C - C}$ bond lengths are of the same order (139 pm) which is intermediate between ${C = C}$ single bond (154 pm) and ${C - C}$ double bond (133 pm).