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Exam 21: Benzene and the Concept of Aromaticity

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Question 41

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Answer the following questions concerning sulfathiazole below by filling ieach blank with the appropriate response. -According to Hückel criteria, sulfathiazole is predicted to be ___________.

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Question 42

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What is the major organic product obtained from the following reaction?

A) 1
B) 2
C) 3
D) 4

E) All of the above
F) A) and B)

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Question 43

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What is the best choice of reagent to achieve the following reaction?

Consider the following structure. The ¹H NMR spectrum of [14]annulene at -60 ^$\circ$ C shows two peaks, one at 0 ppm and one at 7.6 ppm. -The ratio of peak areas, respectively for the 7.6 ppm and 0 ppm, peaks would be_______.

Which of the following ions is aromatic?

What are the relative positions of the substituents in the following structure?

What is the correct assignment of the names of the following heterocycles?

Consider the cycloheptatrienyl anion. Complete the following questions by filling in the blank with the appropriate word. -According the Hückel criteria this anion would be classified as ______________.

Consider the following general structure. Positions 1,4 and 2,6 and 3,5 are termed para, ortho, and meta, respectively.

Which of the following represents the energy levels of the molecular orbitals of benzene?

Consider the following structures, A B Structure A is more acidic than B.

Consider the cycloheptatrienyl anion. Complete the following questions by filling in the blank with the appropriate word. -This anion has______ $\pi$ electrons.

Which of the following is true about [10]annulene?

What is the major organic product obtained from the following reaction?

What is the major organic product obtained from the following reaction?

What is the major organic product obtained from the following reaction?

What is the major organic product obtained from the following reaction?

What is the IUPAC name of the following compound?

Consider the cycloheptatrienyl anion. Complete the following questions by filling in the blank with the appropriate word. -Consider the following two compounds. A B An ether solution containing these two substances was mixed with an aqueous 1 M NaOH solution. Substance _____ will be found in the basic layer.

Which orbitals contain the lone pairs on the nitrogen atoms labeled i and ii in the imidazole ring?