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Which of the following statement(s) is (are) true about a compound that has a molecular ion peak in its mass spectrum at mass 69, and shows a prominent peak in its IR spectrum at 2250 cm-1?


A) The compound has a molecular mass of 70.
B) The compound contains a C=O group.
C) The compound contains a cyano or alkyne group.
D) Both (The compound has a molecular mass of 70) and (The compound contains a C=O group) are true statements.
E) Both (The compound has a molecular mass of 70) and (The compound contains a cyano or alkyne group) are true statements.

F) All of the above
G) B) and D)

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What type of signal(s) would you observe in the mass and/or infrared spectrum of the following compound? What type of signal(s)  would you observe in the mass and/or infrared spectrum of the following compound?   A)  A signal at 96 amu B)  Two signals at 112 and 114 amu C)  A signal at 1600 cm<sup>-1</sup> D)  A signal at 1720 cm<sup>-1</sup>


A) A signal at 96 amu
B) Two signals at 112 and 114 amu
C) A signal at 1600 cm-1
D) A signal at 1720 cm-1

E) None of the above
F) All of the above

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