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. Show your WOR Calculate the R value firstLE 110 100 90 80 70 60 50 40 30 20 10 190 180 170 160 150 140 130 120 (d) Structure:

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Q: 90 80 70 60 50 40 30 10 1000 500 3000 2500 2000 1500 4000 3500 20 % Tlánsmittance

A: D-fructose

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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.