Organic Chem 2 Quiz 1

Study Guide: Exam 1
1. How many different kinds of protons are present in each of the following compounds?

A. a: 4; b: 4; c: 4
B. a: 4; b: 4; c: 5
C. a: 3; b: 3; c: 5
D. a: 3; b: 4; c: 5
E. a: 4; b: 3; c: 5 2. Which of the labeled hydrogens absorbs furthest upfield in the NMR?

A. Ha
B. Hb
C. Hc
D. Hd
E. He 3. Which of the following compounds does not give a singlet in its NMR spectrum?

A. A
B. B
C. C 4. Which of the circled protons in the molecules below would absorb furthest downfield in the NMR?

A. A
B. B
C. C
D. D
E. E 5. Which of the labeled protons would absorb furthest downfield in an NMR spectrum?

A. A
B. B
C. C
D. D
E. E 6. Which of the indicated protons would absorb furthest downfield in an NMR spectrum?

A. A
B. B
C. C 7. Which compound does not give four sets of absorptions in its NMR spectrum (i.e., which compound does not have four kinds of hydrogens)?

A. A
B. B
C. C 8. Compound X has a molecular formula C8H10, and gives the 1H NMR below. What is the structure of X?

A. A
B. B
C. C
D. D 9. How many different kinds of protons are present in each of the following compounds?

A. a: 5; b: 6
B. a: 5; b: 5
C. a: 4; b: 6
D. a: 4; b: 5
E. a: 3; b: 6 10. Into how many peaks will the circled proton be split?

A. 5
B. 6
C. 7
D. 8