KCET2011ChemistryHydrocarbons
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
- CHeat of hydrogenation of benzene is less than its theoretical value
- DThe bond angle between 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
Benzene does not contain 3 single bonds and 3 double bonds. These are all partially double due to resonance.