KCET2010ChemistryGeneral Organic Chemistry
Which one of these is not true for benzene?
Options
- AIt forms only one type of monosubstituted product
- BThere are three carbon-carbon single bonds and three carbon-carbon double bonds
- CThe heat of hydrogenation of benzene is less than the theoretical value
- DThe bond angle between the carbon-carbon bonds is 120^
Correct answer
B. There are three carbon-carbon single bonds and three carbon-carbon double bonds
Step-by-step solution
The structure of benzene is Bond order = number of bonds number of resonating structures = 4 3 =1.33 Since, the bond order is in between single and double bond, thus it contains delocalised bonds. Hence, it is not possible to obtain number of single and double bonds in benzene.