*20. The two isomeric compounds with the formula C10H14 have NMR spectra shown below. Make no attempt to interpret the aromatic proton area between 7.1 and 7.3 ppm except to determine the number of protons attached to the aromatic ring. Draw the structures of the isomers. C10H14 5.10 7.5 7.0 1.10 2.15 3.04 2.94 4.0 2.0 1.0 (a) C10H14

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Amines

Amines are organic compounds with a nitrogen atom having a lone pair of electrons on it. They are derived from ammonia (NH3) wherein hydrogen atoms are substituted by an aryl or alkyl group.