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Question 41 (2 points) Which of the following carbocations is (are) likely to undergo rearrangement through...
Question 47 (2 points) Which of the following carbocations is (are) likely to undergo rearrangement through...
Question 47 (2 points) Which of the following carbocations is (are) likely to undergo rearrangement through a methyl shift? нус CH HC CH нус CH oa) both II and III ob) oc) 11 od) both I and II Question 48 (2 points) For the reaction shown, select the expected major organic product. 1. 1 e HCI 2 1 e HBO Ho Br + enantiomer + enantiomer + enantiomer + enantiomer IV 11 HI! Oa) 1 ob) 11 Oc) III od)...
Question 9 (2 points) Which of the following carbocations is (are) likely to undergo rearrangement through...
Question 9 (2 points) Which of the following carbocations is (are) likely to undergo rearrangement through a methyl shift? HC CH HC CH H₃C. CH INI a) both I and II b) both II and III OI d) 1 Question 10 (2 points) Choose a major product for the reaction below 0 Cl/AICI OCH, CI OCH OCH OCH a) I, II and Ill b) d)
Question 3 (2 points) For the reaction shown, select the expected major organic product. 1. 1...
Question 3 (2 points) For the reaction shown, select the expected major organic product. 1. 1 eq HCI 2. 1 eq HBO Br -Br Br + enantiomer + enantiomer + enantiomer Br + enantiomer IV II a) 11 Ob) III O c) v Od) I Question 8 (2 points) What is the product of the reaction below? ТОН PCC O OH I II OH III IV a) 1 b) IV O c) III d) I Question 10 (2 points) Predict...
Which of the following carbocations is most likely to undergoe a rearrangement? ( Hint: Remember that...
Which of the following carbocations is most likely to undergoe a rearrangement? ( Hint: Remember that a 1,2-shift can involve a shift of -H or -R Il IV QUESTION 27 Which of the following alkyl halides will undergo E2 elimination of HBr more rapidly (assume that elimination is induced by "OCH3)? Br Br AI B QUESTION 29 Is the configuration of the following molecule R or S? H OAR B. S chirality center present C Neither, there is no
Question 19 (2 points) Which of the following compounds will undergo the fastest SN 1 reaction?...
Question 19 (2 points) Which of the following compounds will undergo the fastest SN 1 reaction? Br BI Br Br 1 I! II! IV oa) III ob) IV OC) 11 od) 1 Question 20 (2 points) In the molecule shown below, determine which of the highlighted C-H bonds a to d is expected to have the lowest bond dissociation energy? HU Hd Oa) C-Hb ob) C-HC Oc) C-Hd od) C-Ha
Question 48 (2 points) For the reaction shown, select the expected major organic product 1. 1...
Question 48 (2 points) For the reaction shown, select the expected major organic product 1. 1 eq HCI 2. 1 eqHBE to go to Br + enantiomer + enantiomer + enantiomer III + enantiomer IV Oa) Ob) 11 Oc) III Od) IV
Which of the following alkyl halides is likely to undergo rearrangement by a 1, 2- methyl...
Which of the following alkyl halides is likely to undergo rearrangement by a 1, 2- methyl shift? A) 3-bromo-3-methylpentane B) 2-chloro-3, 3-dimethylpentane C) 3-bromo-2, 3-dimethylpentane D) 2-iodo-2-methylpentane Which of the following alkyl halides is the worst substrate for the Sn2 reaction? A) Br B) Br C) Br D) Br In the mechanism for the reaction shown below, the first curved arrow moves from_ to Н. CH3CH2NH2 H3C + CH3 A) carbon (in CH3CH2NH2) to oxygen B) oxygen to nitrogen C)...
Question 15 (2 points) Which of the following substituents will not direct the incoming group to...
Question 15 (2 points) Which of the following substituents will not direct the incoming group to the ortho/para position during electrophilic aromatic substitution? Oa) -CH2CH3 Ob) -OCOCH3 OC) -COOCH3 Od) -N(CH3)2 Question 16 (2 points) Which of the following compounds will undergo the fastest SN 1 reaction? Br Br Br Br IV a) 1 Ob) III OC) IV Od) 11
Question 21 (2 points) Which of the following dienes can undergo the Diels-Alder reaction? III IV...
Question 21 (2 points) Which of the following dienes can undergo the Diels-Alder reaction? III IV Oa) III ob) 11 Oc) od) IV Question 22 (2 points) Predict the product(s) of the following reaction. нег ROOR Oa) HBr addition at the alkene position following Markonikov's rule Ob) HBr addition at the alkene position following Anti-Markonikov's rule Oc) H20 addition at the alkene position following Anti-Markonikov's rule od) H20 addition at the alkene position following Markonikov's rule
6. Which of the following carbocations would NOT be likely to undergo rearrangement? A) CH3CHCHCH3 CH3...
6. Which of the following carbocations would NOT be likely to undergo rearrangement? A) CH3CHCHCH3 CH3 CH3 B) CH3CHOCH3 CH3 CH C) CH3CCH2 CH3 D) CH3 CH3CHCH2 E) CH3 CH3CCHCH2CH3 CH3 7. Which alcohol would initially produce the most stable carbocation when treated with concentrated H2SO4? A) CH3 CH3CCH2 CH3 он CH3 B) CH3CHCHCH3 он CH3 C) CH3CHCH2CH2OH CH3 D) HOCH2 CHCH2CH3 E) CH2 OH CH3CHCH2CH3 Page 4
Question 47 (2 points) Which of the following carbocations is (are) likely to undergo rearrangement through a methyl shift? нус CH HC CH нус CH oa) both II and III ob) oc) 11 od) both I and II Question 48 (2 points) For the reaction shown, select the expected major organic product. 1. 1 e HCI 2 1 e HBO Ho Br + enantiomer + enantiomer + enantiomer + enantiomer IV 11 HI! Oa) 1 ob) 11 Oc) III od)...
Question 9 (2 points) Which of the following carbocations is (are) likely to undergo rearrangement through a methyl shift? HC CH HC CH H₃C. CH INI a) both I and II b) both II and III OI d) 1 Question 10 (2 points) Choose a major product for the reaction below 0 Cl/AICI OCH, CI OCH OCH OCH a) I, II and Ill b) d)
Question 3 (2 points) For the reaction shown, select the expected major organic product. 1. 1 eq HCI 2. 1 eq HBO Br -Br Br + enantiomer + enantiomer + enantiomer Br + enantiomer IV II a) 11 Ob) III O c) v Od) I Question 8 (2 points) What is the product of the reaction below? ТОН PCC O OH I II OH III IV a) 1 b) IV O c) III d) I Question 10 (2 points) Predict...
Which of the following carbocations is most likely to undergoe a rearrangement? ( Hint: Remember that a 1,2-shift can involve a shift of -H or -R Il IV QUESTION 27 Which of the following alkyl halides will undergo E2 elimination of HBr more rapidly (assume that elimination is induced by "OCH3)? Br Br AI B QUESTION 29 Is the configuration of the following molecule R or S? H OAR B. S chirality center present C Neither, there is no
Question 19 (2 points) Which of the following compounds will undergo the fastest SN 1 reaction? Br BI Br Br 1 I! II! IV oa) III ob) IV OC) 11 od) 1 Question 20 (2 points) In the molecule shown below, determine which of the highlighted C-H bonds a to d is expected to have the lowest bond dissociation energy? HU Hd Oa) C-Hb ob) C-HC Oc) C-Hd od) C-Ha
Question 48 (2 points) For the reaction shown, select the expected major organic product 1. 1 eq HCI 2. 1 eqHBE to go to Br + enantiomer + enantiomer + enantiomer III + enantiomer IV Oa) Ob) 11 Oc) III Od) IV
Which of the following alkyl halides is likely to undergo rearrangement by a 1, 2- methyl shift? A) 3-bromo-3-methylpentane B) 2-chloro-3, 3-dimethylpentane C) 3-bromo-2, 3-dimethylpentane D) 2-iodo-2-methylpentane Which of the following alkyl halides is the worst substrate for the Sn2 reaction? A) Br B) Br C) Br D) Br In the mechanism for the reaction shown below, the first curved arrow moves from_ to Н. CH3CH2NH2 H3C + CH3 A) carbon (in CH3CH2NH2) to oxygen B) oxygen to nitrogen C)...
Question 15 (2 points) Which of the following substituents will not direct the incoming group to the ortho/para position during electrophilic aromatic substitution? Oa) -CH2CH3 Ob) -OCOCH3 OC) -COOCH3 Od) -N(CH3)2 Question 16 (2 points) Which of the following compounds will undergo the fastest SN 1 reaction? Br Br Br Br IV a) 1 Ob) III OC) IV Od) 11
Question 21 (2 points) Which of the following dienes can undergo the Diels-Alder reaction? III IV Oa) III ob) 11 Oc) od) IV Question 22 (2 points) Predict the product(s) of the following reaction. нег ROOR Oa) HBr addition at the alkene position following Markonikov's rule Ob) HBr addition at the alkene position following Anti-Markonikov's rule Oc) H20 addition at the alkene position following Anti-Markonikov's rule od) H20 addition at the alkene position following Markonikov's rule
6. Which of the following carbocations would NOT be likely to undergo rearrangement? A) CH3CHCHCH3 CH3 CH3 B) CH3CHOCH3 CH3 CH C) CH3CCH2 CH3 D) CH3 CH3CHCH2 E) CH3 CH3CCHCH2CH3 CH3 7. Which alcohol would initially produce the most stable carbocation when treated with concentrated H2SO4? A) CH3 CH3CCH2 CH3 он CH3 B) CH3CHCHCH3 он CH3 C) CH3CHCH2CH2OH CH3 D) HOCH2 CHCH2CH3 E) CH2 OH CH3CHCH2CH3 Page 4
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