Which reagent(s)/technique would serve to distinguish between azulene and bicyclo[5.3.0]decane?

Question

Quizplus · Accepted Answer

NMR Spectroscopy would be the best technique to distinguish between azulene and bicyclo[5.3.0]decane. In the NMR spectrum of azulene, there would be a characteristic set of signals for the two fused five-membered rings and the central seven-membered ring, whereas in the NMR spectrum of bicyclo[5.3.0]decane, there would be characteristic signals for the two fused six-membered rings. The other techniques/reagents listed would not be able to distinguish between azulene and bicyclo[5.3.0]decane.

Which Reagent(s)/technique Would Serve to Distinguish Between Azulene and Bicyclo[5