Answer :
Final answer:
Mass spectrometry and IR spectroscopy are instrumental techniques crucial for determining the molecular weight and identifying functional groups within a compound. These techniques, along with NMR spectroscopy, enable the deduction of the complete molecular structure and IUPAC naming of the compound.
Explanation:
The mass spectrum provides key information about the molecular weight of a compound by displaying the m/z values, where the molecular ion peak corresponds to the molecular weight. The IR spectrum can identify functional groups within the molecule based on the absorption of specific frequencies. For example, a broad band at 3300 cm-1 typically indicates the presence of an alcohol group, while a strong band at 1700 cm-1 often signifies a carbonyl group such as an aldehyde or ketone.
In the given question, the mass spectrum shows a molecular ion peak at m/z = 92. This data, combined with an IR spectrum featuring a band at 3300 cm-1 and 1700 cm-1, suggests a compound with alcohol and carbonyl functional groups. The NMR spectra provide further details about the hydrogen and carbon environments within the compound, allowing for a more detailed structural analysis. These spectral data, when integrated, enable the deduction of a compound's structure and its IUPAC nomenclature.
