Page 47 - Practical-organic-3

❖ Choose the correct answer for each of the following statements:

1. Which of the following atoms has the lowest electronegativity?
a. Oxygen b. Carbon

c. Bromine d. Fluorine
2. Which of the following atoms has the highest electronegativity?
a. Oxygen b. Carbon
c. Bromine d. Florine
3. Which of the following attaching protons will have the highest electron density?

a. H-O b. H-C
c. H-F d. H-Br
4. Which of the following attaching protons is the most shielded?

a. H-O b. H-C
c. H-F d. H-Br
5. Which of the following attaching protons is the most de-shielded?

a. H-O b. H-P

c. H-F d. H-Br
6. Which of the following attached protons has the lowest chemical shift?
a. H-O b. H-C
c. H-F d. H-Br
7. Circle the most shielded proton(s)?

a. b. c.

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