Sample Test 2 - CHM 2120A Spectroscopy and Carbonyl...

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CHM 2120A Sample Exam Spectroscopy and Carbonyl Chemistry Name___________________________________ Student Number_____________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question 1) Which compound would be expected to show intense IR absorption at 1715 cm - 1 ? A) CH 3 CH 2 CH 2 NH 2 B) CH 3 CH 2 CO 2 H C) 1 - hexene D) 2 - methylhexane 1) 2) Which compound would be expected to show intense IR absorption at 2710 and 1705 cm - 1 ? A) PhC( = O)CH 3 B) CH 2 CHC( = O)CH 3 C) PhCHO D) CH 3 C( = O)CH 2 CH 3 2) 3) Which compound would be expected to show intense IR absorption at 3300 cm - 1 ? A) CH 3 CCCH 3 B) 1 - butene C) CH 3 CH 2 CCH D) butane 3) 4) Which of the following frequencies corresponds to the region where one would find the stretching frequency for a C - H of an alkyne in an IR spectrum where the hydrogen is attached directly to the carbon containing the triple bond? A) 2960 - 2850 B) ~ 3300 C) 3100 - 3120 D) ~ 3650 E) 1780 - 1650 4) 5) Give the C - H absorption band for a sp carbon. A) 2900 cm - 1 B) 3500 cm - 1 C) 2700 cm - 1 D) 3100 cm - 1 E) 3300 cm - 1 5) 6) How many signals would you expect to see in the 1 H NMR spectrum of the following compound? CH
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Sample Test 2 - CHM 2120A Spectroscopy and Carbonyl...

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