Practice Infrared (IR) Spectroscopy - 3.3 | Unit 11: Measurement and Data Processing | IB Grade 11: Chemistry
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3.3 - Infrared (IR) Spectroscopy

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What does IR stand for?

πŸ’‘ Hint: Think of the part of the electromagnetic spectrum.

Question 2

Easy

What is a characteristic absorption band?

πŸ’‘ Hint: Consider how different molecules respond to IR light.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What unit is commonly used to express IR spectral data?

  • Nanometers
  • Wavenumbers
  • Millimeters

πŸ’‘ Hint: Think about the inverse relationship of frequency and wavelength.

Question 2

True or False: The fingerprint region below 1500 cm⁻¹ is unique for each compound.

  • True
  • False

πŸ’‘ Hint: Think about how fingerprints work for identification.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A compound shows an absorption peak at 1710 cm⁻¹. Determine which functional group is present and justify your answer.

πŸ’‘ Hint: Use the common absorption frequencies for functional groups.

Question 2

Design an analytical procedure using FTIR to ascertain the quality of an oil sample based on its known functional groups.

πŸ’‘ Hint: Think about how calibration curves are constructed for quantitative analysis.

Challenge and get performance evaluation