Practice Interpreting Ir Spectra: Characteristic Absorption Bands (12.2.2) - Chapter 12: Spectroscopic Identification of Organic Compounds
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Interpreting IR Spectra: Characteristic Absorption Bands

Practice - Interpreting IR Spectra: Characteristic Absorption Bands

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Practice Questions

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Question 1 Easy

What is the characteristic absorption range for the O-H bond in alcohols?

💡 Hint: Recall the broader region associated with hydrogen bonding.

Question 2 Easy

What does a peak at 1715 cm⁻¹ suggest in IR spectroscopy?

💡 Hint: Think about compound types that contain a C=O bond.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the range for broad O−H absorption bands in carboxylic acids?

3200-3600 cm⁻¹
2500-3300 cm⁻¹
1700-1750 cm⁻¹

💡 Hint: Think about how the strength of hydrogen bonding affects absorption.

Question 2

True or False: IR spectroscopy can accurately determine the molecular formula of a compound.

True
False

💡 Hint: Consider what data IR specifically reveals.

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Challenge Problems

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Challenge 1 Hard

You analyze a sample showing peaks at 3400 cm⁻¹, 1710 cm⁻¹, and 700 cm⁻¹. What are the likely functional groups present and what does it suggest about the compound?

💡 Hint: Think about how multiple peaks converge to suggest compound identity.

Challenge 2 Hard

Given an IR spectrum with broad peaks indicating hydrogen bonding, determine the structural implications for that compound.

💡 Hint: Consider how intermolecular forces influence physical properties.

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