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н Н Which compound below fits the following proton NMR data? O-CH3 CH3 A singlet 8 3.98 (3H) quartet S 2.14 (2H) triplet
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н Н Which compound below fits the following proton NMR data? O-CH3 CH3 A singlet 8 3.98 (3H) quartet S 2.14 (2H) triplet
н Н Which compound below fits the following proton NMR data? O-CH3 CH3 A singlet 8 3.98 (3H) quartet S 2.14 (2H) triplet 8 1.22 (3H) CH3-CH₂-O-C-CH3 В CH3-O-CH₂-C-CH3 C -о-сна CH3-CH₂-C-O-CH3 D