JIPMER2012ChemistryHydrocarbons
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
The Benzene has (120^ ) bond angle. The more heat released, the more negative the value. Benzene releases less heat (has a lower heat of hydrogenation) because of its aromatic properties which gives it remarkable stability. Benzene does not have 3 single and 3 double bonds. All bonds are partially double bonds due to resonance.