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IR Spectroscopy

IR Spectroscopy

Assessment

Interactive Video

Science

12th Grade

Practice Problem

Hard

Created by

Jessica Woo

FREE Resource

5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the relationship between energy and wavelength in the electromagnetic spectrum?

They are inversely proportional.

They are the same.

They are unrelated.

They are directly proportional.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In IR spectroscopy, what is often used instead of frequency?

Wave number

Photon count

Amplitude

Wavelength

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of molecular motion involves changing the bond angle?

Asymmetrical stretching

Symmetrical stretching

Rotating

Bending

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is the fingerprint region important in IR spectroscopy?

It shows the speed of light in a vacuum.

It identifies the color of a compound.

It is unique to each molecule and helps in identifying compounds.

It measures the temperature of a sample.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does IR spectroscopy help in forensic science?

By measuring the density of a material.

By calculating the speed of sound in a medium.

By identifying unknown substances through spectral matching.

By determining the age of a sample.

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