An Unknown Oxygen-Containing Organic Molecule Shows a Parent Peak on Its

question 25

Multiple Choice

An unknown oxygen-containing organic molecule shows a parent peak on its mass spectra at m/z 122.With no information from the visible or uv, the IR revealed major broad absorptions from 2500 cm^-1 to 3500 cm^-1, and strong sharp absorptions at 2930 cm^-1, 1690 cm^-1, and 1230 cm^-1.The ¹H NMR revealed a singlet downfield around $\delta$ 13 (1H) and a multiplet at $\delta$ 7.2 (5H) .The molecule consistent with these facts is:

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