NEETChemistryHydrocarbons
What problem arose when it was observed that benzene forms only one ortho disubstituted product?
Options
- ALack of suitable reagents
- BViolation of Kekulé's structure
- CDifficulty in chemical analysis
- DIncompatibility with the oscillating bond concept
Correct answer
D. Incompatibility with the oscillating bond concept
Step-by-step solution
The observation that benzene forms only one ortho disubstituted product posed a problem for Kekulé's structure, which led to the concept of oscillating double bonds.