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CHEM_354_Exam_1_Fall_2003

CHEM_354_Exam_1_Fall_2003 - Multiple Choice 3 points each 1...

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Multiple Choice: 3 points each 1. The IR peak that distinguishes a 1º amine and a 1º amide is at ___________cm -1 . a. 3450 and 3350 (two peaks) b. 2200 c. 1650 d. 1350 2. Which of the following techniques can readily distinguish between CH 3 COOCH 2 CH 3 and CH 3 OOCCH 2 CH 3 ? IR 1 H NMR 13 C NMR Mass Spectrometry A B C D 3. Which of the following compounds shows two singlets at 1.3 and 2.1 ppm with a corresponding relative integration ratio of 3:1 in 1 H NMR. 4. Addition of H 2 O/H + to styrene (PhCH=CH 2 ) will form a compound that will show a peak at ________ cm -1 on an IR spectrum. 5. The molecular ion cluster of a compound shows the following M + /(M+2)/M+4) with a relative ratio of intensities 1:2:1. The molecular formula of the compound contains _______ atoms. a. one nitrogen b. one bromine c. two chlorine d. two bromine
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