Treatment of 1-pentene with H2SO4/H2O gave product D. The MS spectrums of Compound D is shown below. Note that the molecular ion, m/z 88 is not detected in the spectrum. Identify the structure of product D. Provide explanation for your answer.

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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.