1 2 Points Which Of The Following Rules Apply To Determining Whether A Region Of A Structure Is Aromatic Circle All 1 (31.55 KiB) Viewed 15 times
1 2 Points Which Of The Following Rules Apply To Determining Whether A Region Of A Structure Is Aromatic Circle All 2 (31.86 KiB) Viewed 15 times
1. (2 points) Which of the following rules apply to determining whether a region of a structure is aromatic? Circle all that apply. 1. The region must contain 4n pi electrons. II. The region must contain 4n+2 pi electrons. III. The region must be conjugated. IV. The region must contain only sp2 hybridized carbons. V. The region must be planar A. II, III and V B. I, II and V C. II, III, IV, and V D. III and V 2. (2 points) Assuming each of the following structures is planar, select the answer that correctly identifies all aromatic examples. A. I only B. I and II NH || C. all compounds are aromatic D. I, II and IV HB- IV
3. (2 points) Assuming each of the following structures is planar, select the answer that correctly identifies all antiaromatic examples. A. Ill only B. II and IV C. none are antiaromatic D. IV only 1. Cycloadditions II. Electrocyclic III. Sigmatropic A. III only B. I and II C. I and III D.II and III NH 9. (2 points) Which of the following pericyclic reactions result in more sigma-bonds than pi-bonds in the products? B. ether C. halogen || D. ester HB IV 10. (2 points) Which of the following functional groups can be characterized as a weak activator or deactivator with respect to an EAS reaction depending upon the exact connectivity? A. ketone
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