Vollhardt,Chapter21

Vollhardt,Chapter21 - Chapter 21: 1. What is another name...

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Chapter 21: 1. What is another name for the benzenamines? a. The anilines. b. The lactams. c. The alkanamines. d. The diamines. Answer: A 2. How can the hydrogen bond formed by amines best be described? a. As stronger than those formed by alcohols. b. As more polar than those formed by alcohols or carbonyls. c. As weaker than those formed by alcohols. d. Amines do not form hydrogen bonds. Answer: C 3. What range is the 1H NMR signal of the N-H in an amine? a. 1 - 3 ppm. b. 5.5 - 8 ppm. c. 8 - 10 ppm. d. Almost anywhere in the normal 1H NMR shift range. Answer: D 4. Why is the nitrogen of aniline less basic than that of an amine on a saturated cyclic hydrocarbon? a. Because of the flexibility of the aromatic ring. b. Because it has two hydrogens attached to it directly. c. Resonance stabilization from the nitrogen through the ring. d. It isn’t; rather, it is more basic. Answer: C 5. How can primary amines be further alkylated? a.
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Vollhardt,Chapter21 - Chapter 21: 1. What is another name...

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