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In which region of the carbon-13 NMR spectrum would you expect to find a resonance for the carbonyl group of an aliphatic ketone? The given chemical shift ranges are approximate. A. 50-80 ppm B. 180-210 ppm C. 100-150 ppm D. 65-85 ppm E. 9-10 ppm F. 110-170 ppm

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