b. A compound with the molecular formula C3H,0 has the carbon NMR spectrum shown below. Draw a reasonable structure that is consistent with this data. Calculate the R value first! 60 50 40 30 20 10 o ốc 160 150 140 130 120 110 100 90 80 70 190 180 170 (d) Structure: 하

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UV Visible Spectroscopy

Spectroscopy refers to the absorption or emission of light or other radiations by matter. When a substance or chemical absorbs light or radiation, they reach an excited state followed by de-excitation or emission of the light or radiation forming distinct spectra. UV-visible spectroscopy or  ultraviolet-visible refers to the absorption and emission in the ultraviolet and visible regions of the electromagnetic spectrum.