Homework Answers
5a. B>A>C>D. Since EWGs(NO2&Cl) increases the acidity. In B two Nitro groups increases the acidity more. And Cl shows both negative Inductive effect and positive Mesomeric effect.
5b. 2>3>1, since EDGs(-CH2COCH3) increases the reactivity towards aromatic Electrophilic substitution reactions. Both F and COCH2CH3 acts as EWGs, hence less reactive.
5c. Compound C is more stable since it is Aromatic (satisfying Huckel's 4n+2 pi electron rule - 6 electrons total). Hence less reactive.
Stability order : C>B>A
Since Aromatic >non Aromatic >anti aromatic
5d. 
In second intermediate, there is no involvement of OCH3 group. Hence it not Meta directing group.
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agis iWhich of the Sollowsing is the most acidic amange these phonols in increasing onde of...
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s (c) NH2 Rank the molecules shown in Figure 6 from H) most acidic to least acidic (example:dcba . NH2 он Figure 6 ) Which of the following is most stable carbocation? i) methyl i) primary i) secondary iv) tertiany v) Hiv are approximately equal in stability J) Which of the following is not a characteristic of most aromatic compounds like benzene? i) they are cyclic li) they are planar ii) they are resonance stabilized iv) the aikenes of the...
CHEM 3320 Practice Test 3 1 a Draw a diagram showing how the electrons would be...
CHEM 3320 Practice Test 3 1 a Draw a diagram showing how the electrons would be distributed in the pi molecular orbitals of square cyclobutadiene, and explain why this structure is anti-aromatic. (4 pts) b. Add electron pairs as appropriate and indicate whether each of these species is aromatic or not. (8 pts) 2. Consider these four benzene derivatives: CH3 Br CH3 NH2 ?. D. a. Which one would be most reactive in electrophilic aromatic substitution? (2 pts) b. Which...
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to form Which of the following possible Birch reduction products would not be expected CH3 CH3 0 CH3 A. B. C. Which of the following substrates would most likely undergo a successful nucleophilic aromatic substitution reaction with diethylamine? NO2 NO 2 NO 2 A. B. C. D. Which of the following resonance structures does not depict stabilization of the negative charge in the Meisenheimer complex? 0 A. The nitro group has which of the following effects in electrophilic aromatic substitution?...
5. a) which proton in A is most acidic? Explain thoroughly with resonance structures. b) Decide...
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. Given the following molecules, answer the given questions: (2 pts Ha Me OMe ??? NO...
. Given the following molecules, answer the given questions: (2 pts Ha Me OMe ??? NO Which molecule will mot undergo any electrophilic substitution reaction? Which molecule will have exclusively one product upon bromination in presence of FeBr? Which molecule has the most acidic proton? Which molecule is most reactive towards any electrophilic aromatic substitution? Which molecule will give a tricarboxylic acid upon reacting with KMnOHSo b. d. 6. Give the reagents for the following reactions, then explain (to yourselt)...
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Please help! 4. Suppose Compound B is the conjugate base of Compound A. Calculate the approximate...
Please help!
4. Suppose Compound B is the conjugate base of Compound A. Calculate the approximate concentration of Compound A that must be present in a 0.042 M solution of Compound B to produce a pH of 4.96. The K. for Compound A is 1.8 x 109. Show your work. Round your final answer to the nearest hundredth decimal place. (5pts) 5. Consider the structure below. Then using the empty boxes, answer parts (a)-(e). HO (a) (1 pts) Draw a...
1. Rank the following molecules in order of increasing acidity (1 being the least acidic, 5...
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Which molecule has the most acidic proton? NO2 Осн. А What structure is a major intermediate formed in the electrophilic nitration of chlorobenzene? ON'H CH 0Nci ON Which statement is true about the following compounds? compoundement is WOCHY OCH3 DI OH OH Isoeugenol (nutmeg) Eugenol (cloves) A. They have same reactivity toward Electrophilic Aromatic Substitution (EAS). B. They have same reactivity toward Nucleophilic Aromatic Substitution (NAS). C. Eugenol is more reactive than Isoeugenol for EAS reaction. D. Eugenol is less...
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Please help!
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