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CHEM205 Final Exam - Spectroscopy
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MCQs on the introduction of the theory, instrumentation, application of spectroscopic techniques. Topics include mass spectrometry, ultraviolet-visible (UV-Vis) spectroscopy, infrared (IR) spectroscopy, and nuclear magnetic resonance (NMR) spectroscopy.
 

CHEM205 Final Exam - Spectroscopy
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25 Questions

1. In general, when calculating empirical values for λ max, the result of adding a substituent group is a
2. Although the molecular ion is usually absent, aliphatic nitro compounds are indicated by which fragment ion peaks?
3. Nuclei with even masses and odd numbers of protons and neutrons
4. Tandem mass spectrometers
5. Which of the following is in correct order of decreasing IR stretching frequency?
6. Identify this compound.
7. Ethers, esters, and alcohols all contain C-O stretching bands. How can an ether be distinguished from the other two compounds?
8. Identify this compound.
9. Identify this compound.
10. The x-axis of a UV-Vis spectrum is usually reported as wavelength in nm. The y-axis can be reported as
11. Which MS ionization technique is most useful for component analysis of metal-containing compounds, leaving fragments intact?
12. Which of the following lists the electromagnetic radiation in correct order by increasing wavelengths?
13. Which of the following would result in a hypsochromic shift in the UV spectra?
14. Which of the following is NOT a reason why tetramethylsilane (TMS) is often used for a reference in NMR spectroscopy?
15. Basic UV-Visible spectroscopy is designed to analyze samples in what phase?
16. Fast atom bombardment (FAB) and secondary ion mass spectrometry (SIMS) are useful techniques for
17. Within the 3500-3300 cm-1 region, how can primary, secondary, and tertiary amines be distinguished?  
18. Hydrogen bonding causes the hydroxyl IR band to do what?
19. Pump-probe experiments in infrared spectroscopy can result in information about
20. In order for an IR vibration to be allowed, what condition must be met?
21. Why are some fundamental vibrations not observed?
22. The universal scale for reporting chemical shifts in NMR is
23. Which of the following appears the most lowfield?
24. MALDI and ESI are
25. The fingerprint region of the IR spectra corresponds to

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