Practice 1h Nmr Spectroscopy (proton Nmr) (12.3.2.1) - Chapter 12: Spectroscopic Identification of Organic Compounds

Practice: 1H NMR Spectroscopy (Proton NMR)

Lesson 12.3.2.1Spectroscopic Identification of Organic Compounds

Practise this section

9 questions

Flashcard drill
4 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
What is the primary purpose of 1H NMR spectroscopy?
Show hintHide hint
Think about how chemists can deduce compounds' structures.
Question 2.
What does the number of signals in a 1H NMR spectrum indicate?
Show hintHide hint
Remember, each unique hydrogen creates its signal!
3Question 3.
What does a higher chemical shift imply about a hydrogen's environment?
- It is heavily shielded
- It is deshielded
- It indicates a saturated bond
Show hintHide hint
Think about what causes shifts in the spectrum.
4Question 4.
True or False: Integration in NMR tells us the exact number of hydrogen atoms in a molecule.
- True
- False
Show hintHide hint
Consider the meaning of integration.
Question 5.
A molecule is suspected to include both an alcohol and an aromatic ring. Given its 1H NMR shows signals at 1.1 ppm (triplet), 4.2 ppm (singlet), and 7.3 ppm (multiplet), sketch a possible structure that fits these signals.
Show hintHide hint
Say the chemical shifts suggest specific functional groups.
Question 6.
If you have a compound with a molecular formula of C6H12 and a 1H NMR spectrum showing 3 signals at 0.9 ppm (3H), 1.3 ppm (2H), and 5.1 ppm (1H), propose a structure considering the data.
Show hintHide hint
Verify against molecular formula against distinct signals.

5 more questions in this section. Enroll free to practise them all.