What is the major organic product obtained from the following sequence of

What is the major organic product obtained from the

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46.What is the major organic product obtained from the following sequence of reactions?a.1b.2c.3d.4ANS: D47.What is the major organic product obtained from the following sequence of reactions?14
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48.Which of the following cannotbe prepared from benzene in two synthetic steps?49.Which of the following cannotbe prepared from benzene in two synthetic steps?15
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50.Which of the following is the reactive intermediate in the nucleophilic substitution of 4-bromo-1-nitrobenzene with sodium hydroxide?a.1b.2c.3d.4ANS: A51.Which of the following is the reactive intermediate in the nucleophilic substitution of 4-bromo-1-toluene with sodium amide?16
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52.Which of the following is the reactive intermediate formed in the electrophilic bromination of toluene with Br2, FeBr3?53.Which of the following is the reactive intermediate formed in the electrophilic nitration of nitrobenzene with HNO3and H2SO4?17
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54.Which of the following is the reactive intermediate formed in the electrophilic Friedel-Crafts acylationof toluene with CH3COCl and AlCl3?a.1b.2c.3d.4ANS: D55.Which of the following compounds undergoes the most rapid nucleophilic substitution with hydroxide ion?18
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56.Which of the following compounds undergoes the most rapid nucleophilic substitution with hydroxide ion?57.Which of the following chlorobenzenes produces a single isomer upon treatment with NaNH2?58.Which of the following chlorobenzenes does not undergo nucleophilic aromatic substitution upon treatment with NaNH2?19
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a.1b.2c.3d.4ANS: A59.Which mechanism accounts for the reaction of 4-bromo-1-nitrobenzene with sodium hydroxide to form 4-nitrophenol?60.Which mechanism accounts for the reaction of chlorobenzene with acetyl chloride and AlCl3to form 4-chloroacetophenone?
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