Circular Dichroism (CD) Spectroscopy UPDATED ACTUAL
Questions and CORRECT Answers
What is the basis of electronic spectroscopy? Interaction of radiation with a sample to study molecular or atomic structure of
a substance
How can spectroscopy be used quantitatively? To determine the amount of material in a sample
How can spectroscopy be used qualitatively? To determine the chemical structure of a sample
What is the difference between the sources of radiation The amount of energy they radiate
in the EM spectrum?
How is radiation transmitted? In a waveform
How do high energy sources (X-rays or gamma-rays) Breaking of bonds
affect molecules?
How do medium energy sources (UV/Visible) affect Excitation of electrons
molecules?
How do low energy sources (IR) affect molecules? Produce vibrations in chemical bonds
How do very low energy sources (Microwaves and Produce rotation of the chemical bonds
radio waves) affect molecules?
If a material completely REFLECTS all light what color White
results?
If a material absorbs a constant fraction of light across Grey
the EM spectrum, what color results?
If a material completely absorbs all of the light, what Black
color does it appear?
Questions and CORRECT Answers
What is the basis of electronic spectroscopy? Interaction of radiation with a sample to study molecular or atomic structure of
a substance
How can spectroscopy be used quantitatively? To determine the amount of material in a sample
How can spectroscopy be used qualitatively? To determine the chemical structure of a sample
What is the difference between the sources of radiation The amount of energy they radiate
in the EM spectrum?
How is radiation transmitted? In a waveform
How do high energy sources (X-rays or gamma-rays) Breaking of bonds
affect molecules?
How do medium energy sources (UV/Visible) affect Excitation of electrons
molecules?
How do low energy sources (IR) affect molecules? Produce vibrations in chemical bonds
How do very low energy sources (Microwaves and Produce rotation of the chemical bonds
radio waves) affect molecules?
If a material completely REFLECTS all light what color White
results?
If a material absorbs a constant fraction of light across Grey
the EM spectrum, what color results?
If a material completely absorbs all of the light, what Black
color does it appear?
