Structure Elucidation of Organic Compounds

[@chemistry-chem]

Way of explanation is 2 good

[@pattyspanker8955]

Love it. Great NMR explanation

[@ys_sw8289]

Thanks for your video, but i have a question.
In nmr graph, Protons which are located in benzene ring, look like chemical equivalent.
But i think benzene's functional units are not same, so there must be 2 different proton signal.
Please give me a answer teacher