8.) Elemental Analysis: 68.13 % Carbon, 13.72 % Hydrogen, 18.15 % Oxygen Reyle kendly 0000 10 20 30 3000 Mass Spec 7 IR Mass of molecular ion=88 m/1 669 70 80 2000 1500 1000 ¹H NMR 13C NMR H 500 HDI Calculation: Proposed Structure: PPM Chemical Formula: 16

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A: The Double bond equivalent  of C7H12O is given by: DBE = C + 1 -H2- X2+ N2= 7 + 1 - 122= 2

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NMR Spectroscopy

NMR stands for Nuclear Magnetic Resonance in which the study of different molecules is done based on the interaction of radiofrequency electromagnetic radiations with the nuclei of molecules placed in a strong magnetic field. A precise study of spectra of visible light and all bands of electromagnetic radiation is called spectroscopy.