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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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...
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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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Please help! 4. Suppose Compound B is the conjugate base of Compound A. Calculate the approximate...
Please help!
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Please help!
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