Practice Systematic Approach to Structure Elucidation - 12.4.1 | Chapter 12: Spectroscopic Identification of Organic Compounds | IB Grade 12-Chemistry
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12.4.1 - Systematic Approach to Structure Elucidation

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What does the molecular ion peak in mass spectrometry indicate?

💡 Hint: Think about what happens to the molecule during mass spectrometry.

Question 2

Easy

How is the degree of unsaturation (IHD) calculated?

💡 Hint: What does each term in the formula represent?

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 is the purpose of determining the molecular ion peak in mass spectrometry?

  • It indicates the boiling point
  • It provides the molecular mass
  • It describes the functional groups

💡 Hint: What key information does this peak convey about the molecule?

Question 2

True or False: The Degree of Unsaturation formula considers both halogens and nitrogen in the counting.

  • True
  • False

💡 Hint: Focus on how these elements fit into the molecular formula.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A compound has a molecular formula C8H10 and exhibits an IHD of 2. Based on this information, propose possible structural features and draw a representative structure.

💡 Hint: Analyze the degree of unsaturation and consider common structural modifications.

Question 2

Using a provided IR spectrum showing peaks at 3300, 1710, and 3030 cm^-1, what functional groups can be deduced, and what might the molecule be?

💡 Hint: Combine the functional groups along with the IHD to draw potential structures.

Challenge and get performance evaluation