Final answer:
The request for a C9H10 structure based on a 1H NMR spectrum cannot be completed due to mismatched compound information; accurate spectrum data is needed for structure determination.
Step-by-step explanation:
The student requested the structure of C9H10 based on its 1H NMR spectrum. However, the provided information references different compounds, which do not match the formula C9H10. It is important to have the correct spectrum data for C9H10 to accurately determine the structure. In the case of an actual 1H NMR spectrum for C9H10, one would analyze the chemical shifts, multiplicities, and coupling constants to deduce the environment of the hydrogen atoms within the molecule. Additionally, other spectroscopic data such as 13C NMR, IR, MS, and sometimes HMBC are used alongside 1H NMR to confirm the structure.