Practice Principle of Operation - 12.1.1 | Chapter 12: Spectroscopic Identification of Organic Compounds | IB Grade 12-Chemistry
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12.1.1 - Principle of Operation

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is ionization in mass spectrometry?

💡 Hint: Think about what happens when the sample is bombarded with electrons.

Question 2

Easy

What does the molecular ion peak in a mass spectrum indicate?

💡 Hint: Consider the significance of M⁺ in your analysis.

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 ionization in mass spectrometry?

  • To vaporize the sample
  • To create charged ions
  • To accelerate ions

💡 Hint: Remember why we need charged particles for analysis.

Question 2

True or False: The base peak represents the molecular ion.

  • True
  • False

💡 Hint: Different peaks can reflect different aspects of the molecule.

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Explain how you would deduce the molecular structure of a compound given its mass spectrum displaying a clear molecular ion peak and multiple fragment peaks.

💡 Hint: Use both mass-to-charge ratios and known fragment characteristics (e.g., specific m/z values) to support your deductions.

Question 2

You are presented with a mass spectrum showing a prominent M+ peak and a relative abundance of isotope peaks. How would this assist in determining the number of carbon atoms in the compound?

💡 Hint: Remember the formula for estimating carbon counts using isotope intensity ratios.

Challenge and get performance evaluation