Practice - 13C NMR Spectroscopy (Carbon NMR)
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What is the percentage of the 13C isotope in natural carbon?
💡 Hint: Recall the common isotopic distribution in carbon.
What does a single signal in 13C NMR indicate?
💡 Hint: Think about symmetry in molecular structures.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the main purpose of 13C NMR spectroscopy?
💡 Hint: Think about what specific information NMR provides.
True or False: The area under the peaks in a 13C NMR relates directly to the number of carbon atoms.
💡 Hint: Consider how integration functions differently in NMR types.
Get performance evaluation
Challenge Problems
Push your limits with advanced challenges
You have a 13C NMR spectrum with signals at 0, 20, 130, and 200 ppm. Propose a possible structure for a molecule with these chemical shifts.
💡 Hint: Refer to the characteristic ranges for functional groups to guide you.
Calculate and interpret the degree of unsaturation for a molecule with a molecular formula of C8H8 based on the presence of signals in the 13C NMR.
💡 Hint: Count the number of hydrogens and relate it to unsaturation.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.