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5. Which of the following would you expect to have significant resonance stabilization energy? a) I...
Which of the following compounds would you expect to be antiaromatic? (i) cyclooctatetraene (ii) 1,3-cyclooctadiene (iii) cyclooctatetraenyl dianion (iv)
Which of the following compounds would you expect to be antiaromatic? (i) cyclooctatetraene (ii) 1,3-cyclooctadiene (iii) cyclooctatetraenyl dianion (iv) 1-ethenylcyclooctatetraene (v) 1,3,5,7-octatetraene Select one: a. i only b. i, ii, iv and v only c. iii only d. i and iv only e. all the above From my working I found i, ii, iv, and v to be non aromatic and iii to be aromatic. Is non aromatic the same as antiaromatic?
Which of the following compounds would you expect to be antiaromatic? (i) cyclopropene (ii) cyclopropenyl anion (iii) cyclopropenyl cation...
Which of the following compounds would you expect to be antiaromatic? (i) cyclopropene (ii) cyclopropenyl anion (iii) cyclopropenyl cation (iv) 1,2-epoxyethene (v) 3-chlorocyclopropene
Which alkene would you expect to have the lowest heat of hydrogenation? III IV I II...
Which alkene would you expect to have the lowest heat of hydrogenation? III IV I II III IV Which pair does not represent a pair of resonance structures? and and and ШI IV and O I O II O III O IV All of these choices represent pairs of resonance structures.
Which compound would you NOT expect to be aromatic? :00: O: -I E I Д IV...
Which compound would you NOT expect to be aromatic? :00: O: -I E I Д IV V ΟΙ Ο ΙΙ O III O IV O v
Please help...and explain.. Rank the acidity of the protons shown in the picture (from most acidic...
Please help...and explain..
Rank the acidity of the protons shown in the picture (from most acidic to least) I > II > III = IV IV > I = II > III IV > I > II > II I > II > IV > III What accounts for the difference between the acidity of proton (IV) and protons (I and II)? (may be more than one answer) Feature 1: energy and entropy stabilization Feature 2: energy and entropy stabilization...
c) III d) IV e) None of these choices 1) Which of h llwng would you...
c) III d) IV e) None of these choices 1) Which of h llwng would you espet to be aromaic IV b) II c) III d) IV e) All of these choices 12) Which of the following would you expect to be aromatic? IV non non c) III d) IV e) All of these choices. 13) Which of the following would you expect to be aromatic? IV a) I b) II
1. Consider the three reaction energy diagrams below. Make sure you can justify your answer for...
1. Consider the three reaction energy diagrams below. Make sure you can justify your answer for the purposes of Exam 3 – simply guessing on this multiple choice question will NOT help you when you're asked to explain your reasoning on the exam! energy energy energy reaction coordinate reaction coordinate reaction coordinate i) Which forward reaction do you expect to proceed fastest, assuming the same energy scale for each? ii) Which reaction do you expect to be the most favorable...
1. Consider the three reaction energy diagrams below. Make sure you can justify your answer for...
1. Consider the three reaction energy diagrams below. Make sure you can justify your answer for the purposes of Exam 3 - simply guessing on this multiple choice question will NOT help you when you're asked to explain your reasoning on the exam! energy- energy- reaction coordinate reaction coordinate reaction coordinate i) Which forward reaction do you expect to proceed fastest, assuming the same energy scale for each? ii) Which reaction do you expect to be the most favorable in...
7. Which of the following would you expect to have ionic bonds? A) CO B) FBr...
7. Which of the following would you expect to have ionic bonds? A) CO B) FBr C) NF3 D) NaCl 8. Which of the following molecules has nonpolar covalent bonds? A) HCl B) N2 C) CHCl3 D) NO 9. Which of the following molecules contain both covalent and ionic bonds? Naci NH4OH CHзон MgCO3 II IV I A) I, II B) I, IV C) II, III III D) II, IV
30) Which of the following is the most stable diene? L. IV. A)I B) C)III D)IV...
30) Which of the following is the most stable diene? L. IV. A)I B) C)III D)IV E) V 31) Which of the following is an aromatic hydrocarbon? IV -CH A)I B C)ID)IVE) V 32) Which of the following conjugated dienes will not react with a dieneophile in a Diels-Alder reaction? Π. IV A) I B)11 C)111 D) IVE) I and III 33) The conjugate acid of the compound shown below is B) aromatic D) antiaromatic. E) none of the above....
Which alkene would you expect to have the lowest heat of hydrogenation? III IV I II III IV Which pair does not represent a pair of resonance structures? and and and ШI IV and O I O II O III O IV All of these choices represent pairs of resonance structures.
Which compound would you NOT expect to be aromatic? :00: O: -I E I Д IV V ΟΙ Ο ΙΙ O III O IV O v
Please help...and explain..
Rank the acidity of the protons shown in the picture (from most acidic to least) I > II > III = IV IV > I = II > III IV > I > II > II I > II > IV > III What accounts for the difference between the acidity of proton (IV) and protons (I and II)? (may be more than one answer) Feature 1: energy and entropy stabilization Feature 2: energy and entropy stabilization...
c) III d) IV e) None of these choices 1) Which of h llwng would you espet to be aromaic IV b) II c) III d) IV e) All of these choices 12) Which of the following would you expect to be aromatic? IV non non c) III d) IV e) All of these choices. 13) Which of the following would you expect to be aromatic? IV a) I b) II
1. Consider the three reaction energy diagrams below. Make sure you can justify your answer for the purposes of Exam 3 – simply guessing on this multiple choice question will NOT help you when you're asked to explain your reasoning on the exam! energy energy energy reaction coordinate reaction coordinate reaction coordinate i) Which forward reaction do you expect to proceed fastest, assuming the same energy scale for each? ii) Which reaction do you expect to be the most favorable...
1. Consider the three reaction energy diagrams below. Make sure you can justify your answer for the purposes of Exam 3 - simply guessing on this multiple choice question will NOT help you when you're asked to explain your reasoning on the exam! energy- energy- reaction coordinate reaction coordinate reaction coordinate i) Which forward reaction do you expect to proceed fastest, assuming the same energy scale for each? ii) Which reaction do you expect to be the most favorable in...
7. Which of the following would you expect to have ionic bonds? A) CO B) FBr C) NF3 D) NaCl 8. Which of the following molecules has nonpolar covalent bonds? A) HCl B) N2 C) CHCl3 D) NO 9. Which of the following molecules contain both covalent and ionic bonds? Naci NH4OH CHзон MgCO3 II IV I A) I, II B) I, IV C) II, III III D) II, IV
30) Which of the following is the most stable diene? L. IV. A)I B) C)III D)IV E) V 31) Which of the following is an aromatic hydrocarbon? IV -CH A)I B C)ID)IVE) V 32) Which of the following conjugated dienes will not react with a dieneophile in a Diels-Alder reaction? Π. IV A) I B)11 C)111 D) IVE) I and III 33) The conjugate acid of the compound shown below is B) aromatic D) antiaromatic. E) none of the above....
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