final

Question 1

What region of the electromagnetic spectrum does nuclear magnet resonance spectroscopy use?

Answer 1

low energy radio waves (10⁴⁾

Question 2

List the characteristics of electromagnetic radiation.

Answer 2

radiant energy having dual properties of both waves and particles.

The particles of electromagnetic radiation are called photons, each having a discrete amount of
energy called a quantum. Because electromagnetic radiation also has wave properties, it can be
characterized by its wavelength and frequency.

All electromagnetic radiation travels at the speed of light (c),

The speed of electromagnetic radiation (c) is directly proportional to its wavelength and frequency:
c = (wavelength)(frequency)

Question 3

Which spectroscopy method does not involve the interaction of organic molecules with electromagnetic radiation?

Answer 3

Mass spectroscopy

Question 4

What is being detected in electron impact mass spectrometry (EIMS)?

Question 5

The functional group region of an infrared spectrum is:

Answer 5

1500-400 cm^-1

Question 6

What is the definition of a resonance structure?

Answer 6

Two lewis structures having the same placement of atoms but a different arrangement of electrons

Question 7

What are the characteristics of the Diels-Alder reaction?

Answer 7

[1] They are initiated by heat; that is, the Diels–Alder reaction is a thermal reaction.
[2] They form new six-membered rings.
[3] Three pi bonds break, and two new C – C sigma bonds and one new C – C pi bond form.
[4] They are concerted; that is, all old bonds are broken and all new bonds are formed in
a single step.

Question 8

What bonds are made or broken in the Diels-Alder reaction?

Answer 8

Three pi bonds break, and two new C – C sigma bonds and one new C – C pi bond form.

Question 9

Which of the following will absorb light at the longest wavelength?

Answer 9

D - secondary to most conjugation pg 598

Question 10

What is the product of the following reaction?