Which structures are aromatic and which ones are not briefly describe why Examples of aromatic compo...
cannot pin point the other ones. 2. Identify which of the following compounds is aromatic and give the number of p electrons. (5 pts each) b) N Aromatic T 6
Which of the following compounds are aromatic? 25. NH2 N: Which of the following structures, if flat, would be classified as antiaromatic? 26. HN 11 and Ⅳ (C) IV and V (D) only Ⅳ (B) only 11 (A) l and 111 Which nitrogen atoms are basic? 27. (A) 1 and 3(B) 2 and 4 H. (D)2,4,and5 (C) 1,3, and5 Nitrogen's lone pair electrons occupy what type of orbital in pyridine? 28. (A)s (B)p () sp(D)sp (E) sp Which of the...
1. Describe the role of a “Back-End” computer engineer in creating software. Give examples of decisions back end engineers make. Use the relationship between long-term and short-term memory as context for decision examples. 3. Briefly describe Abstract Data Types (ADT) or Abstract Data structures in general. Why are Abstract data structures implemented? Make sure to use your own words.
Briefly describe an organization with which you are familiar. Describe a situation when a manager in that organization could use cost behavior information and how the manager could use the information. Compare discretionary fixed costs to committed fixed costs. Think of an organization with which you are familiar. Give two examples of discretionary fixed costs and two examples of committed fixed costs which that organization may have. Explain why the costs you have chosen as examples fit within the definitions...
Which of the following structures qualify as being aromatic, according to Huckel's rule? Note: If one or more structures are incorrectly placed, a single red X will appear on the top left. Which of the following structures qualify as being aromatic, according to Huckel's rule? Note: If one or more structures are incorrectly placed, a single red X will appear on the top left. Not Aromatic Aromatic 2K
organic chemistry 353 2. (4 pts.) Arrange the following in order of increasing electrophilic aromatic substitution reactivity (4 = most reactive): SO3H OH e 3. (4 pts.) Briefly describe why alkenes undergo addition and aromatic compounds undergo substitution. n Briefly describe w 4. (5 pts. Provide an example of an EAS reaction creates an arene that is less reactive than benzene (be specific, include reagents, you do not need to show the mechanism)
7. Explain with the use of appropriate resonance structures, the regioselectivity of the electrophilic aromatic substitution reaction - i.e. why is electrophilic aromatic substitution of acetanilide less favoured at the 3-position than at the 2- or the 4-positions.
4. Circle the correct label for each structure. Assume planarity for all structures. N: Aromatic Aromatic Aromatic Aromatic Aromatic Nonaromatic Nonaromatic Nonaromatic Nonaromatic Nonaromatic Antiaromatic Antiaromatic Antiaromatic Antiaromatic Antiaromatic 2 a ó lors Aromatic Aromatic Aromatic Aromatic Aromatic Nonaromatic Nonaromatic Nonaromatic Nonaromatic Nonaromatic Antiaromatic Antiaromatic Antiaromatic Antiaromatic Antiaromatic
Which structures are aromatic? Make your call based on the electron distributions shown here, not on possible resonance structures. Which structures are aromatic? Make your call based on the electron distributions shown here, not on possible resonance structures. :o: h I, IV II, III III, IV Ο Ι, ΙΙΙ
which of the compounds or ions drawn below are/is aromatic? please circle 1) Which of the compounds or ions drawn below is/are aromatic? Indicate by letter: Aromatic ones are: و کلید 2) Which of the Nitrogen atoms in Imidazole and Thiazole are strong or weak bases? Fill in the chart below. imidazole thiazol Hybridization on N lone pair is in what orbital type? Strong/ weak base?