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

Question 44

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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 δ \delta 13 (1H) and a multiplet at δ \delta 7.2 (5H) .The molecule consistent with these facts is:


A)  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<sup>-</sup><sup>1</sup> to 3500 cm<sup>-</sup><sup>1</sup>, and strong sharp absorptions at 2930 cm<sup>-1</sup>, 1690 cm<sup>-</sup><sup>1</sup>, and 1230 cm<sup>-</sup><sup>1</sup>.The <sup>1</sup>H NMR revealed a singlet downfield around   \delta   13 (1H)  and a multiplet at   \delta   7.2 (5H) .The molecule consistent with these facts is: A)    B)    C)    D)    E)
B)  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<sup>-</sup><sup>1</sup> to 3500 cm<sup>-</sup><sup>1</sup>, and strong sharp absorptions at 2930 cm<sup>-1</sup>, 1690 cm<sup>-</sup><sup>1</sup>, and 1230 cm<sup>-</sup><sup>1</sup>.The <sup>1</sup>H NMR revealed a singlet downfield around   \delta   13 (1H)  and a multiplet at   \delta   7.2 (5H) .The molecule consistent with these facts is: A)    B)    C)    D)    E)
C)  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<sup>-</sup><sup>1</sup> to 3500 cm<sup>-</sup><sup>1</sup>, and strong sharp absorptions at 2930 cm<sup>-1</sup>, 1690 cm<sup>-</sup><sup>1</sup>, and 1230 cm<sup>-</sup><sup>1</sup>.The <sup>1</sup>H NMR revealed a singlet downfield around   \delta   13 (1H)  and a multiplet at   \delta   7.2 (5H) .The molecule consistent with these facts is: A)    B)    C)    D)    E)
D)  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<sup>-</sup><sup>1</sup> to 3500 cm<sup>-</sup><sup>1</sup>, and strong sharp absorptions at 2930 cm<sup>-1</sup>, 1690 cm<sup>-</sup><sup>1</sup>, and 1230 cm<sup>-</sup><sup>1</sup>.The <sup>1</sup>H NMR revealed a singlet downfield around   \delta   13 (1H)  and a multiplet at   \delta   7.2 (5H) .The molecule consistent with these facts is: A)    B)    C)    D)    E)
E)  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<sup>-</sup><sup>1</sup> to 3500 cm<sup>-</sup><sup>1</sup>, and strong sharp absorptions at 2930 cm<sup>-1</sup>, 1690 cm<sup>-</sup><sup>1</sup>, and 1230 cm<sup>-</sup><sup>1</sup>.The <sup>1</sup>H NMR revealed a singlet downfield around   \delta   13 (1H)  and a multiplet at   \delta   7.2 (5H) .The molecule consistent with these facts is: A)    B)    C)    D)    E)

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