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Select the structure that is consistent with the formula and spectral data below. Propose a structural formula for compound X, with molecular formula C5H10O2. Following is its IR and 1HNMR spectra: in - i r00 Select the structure that is consistent with the formula and spectral data below. Formula 1 H NMR Spectrum C3H7Br doublet, 1.71(6H) septet, 4.32(1H) Select the structure that is consistent with the formula and spectral data below. Formula 1 H NMR Spectrum C4H10O singlet, 0.28(9H) singlet, 01.35(1H)