Organic Chemistry A Short Course 13th Edition by Harold Hart – Test Bank

Organic Chemistry A Short Course 13th Edition by Harold Hart – Test Bank

Chapter 12 — Spectroscopy and Structure Determination

MULTIPLE CHOICE

1. As the wavelength of the radiation decreases, the increases.
A) energy
B) frequency
C) wave number
D) all of these
E) all decrease

ANS: D TOP: General Spectroscopy

2. As the wavelength of the radiation increases, the _______ decreases.
A) energy
B) frequency
C) wave number
D) all of these
E) all increase

ANS: D TOP: General Spectroscopy

3. Which of the following forms of electromagnetic radiation has the longest wavelength?
A) radiowaves
B) infrared
C) visible
D) uv
E) x-ray

ANS: A TOP: General Spectroscopy

4. Which of the following forms of electromagnetic radiation has the highest energy?
A) radiowaves
B) infrared
C) visible
D) uv
E) x-ray

ANS: E TOP: General Spectroscopy

5. Bending vibrations in the infared region occur at:
A) 3000 cm–1
B) 2200 cm–1
C) 1700 cm–1
D) below 1400 cm–1
E) over 3000 cm–1

ANS: D TOP: Infrared Spectroscopy

6. The area in the infared spectrum between 1400 and 400 cm–1 is called the .
A) solid region
B) fingerprint region
C) functional group region
D) location region
E) none of these

ANS: B TOP: Infrared Spectroscopy

7. Which bond would show a strong, sharp absorption in the IR between 1800 and 1700 cm–1?
A) O–H
B) N–H
C) C=O
D) C–H
E) C–O

ANS: C TOP: Infrared Spectroscopy