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Question 7 (2 points) Which of the following compounds will undergo the fastest Sn1 reaction? Br...
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 23 (2 points) Identify the electrophile in the nitration of benzene reaction. oa) NO2 ob) NO3 + OC) NO2 od) HNO3 Question 24 (2 points) Which of the molecules below would be the expected product for the hydrogenation of the following alkene with Na and liq. NH3? Na NH, 1 II III IV oa) 1 ob) III Oc) 11 od) IV
Question 7 (2 points) Which of the following dienes can undergo the Diels-Alder reaction? II III IV a) 11 Ob) III Oc) Od IV Question 8 (2 points) How would you use 'H NMR spectroscopy to distinguish between the following compounds based on the benzene ring protons? II O O a) Benzene protons for I show up between 6.0 - 7.0 ppm and Il between 7.0 - 8.0 ppm Ob) Benzene protons for I show up between 7.0 - 8.0...
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 45 (2 points) For which of the following compounds will the M+2 peak intensity be equal to the intensity of the molecular ion peak M? O a) CH3CH2CH2NH2 Ob) CH3CH2CH2Br Oc) CH3CH2CH2CI d) CH3CH2CH2OH Question 46 (2 points) Saved Predict the major product(s) of the following reaction. Br2 light te: Br Br CH,Br. ICH Br -CH2Br BI III IV Br O a) IV Ob) III Oc) 11 d) 1
Question 36 (2 points) Predict the major product(s) of the following reaction. Bra XX II Br CH2Br. CH,Br CH,BE Br IV Br a) Oь) и O civ d) I Question 37 (2 points) Identify one final major product in the following reaction sequence: CHCI AICI, CHNO c His Zn HCI CH &&9 NH NH NO, N a) II Ob) III OCI d) IV Question 38 (2 points) Predict the product(s) for the following reaction: a NH, Hạ NH NH TH...
Question 41 (2 points) Which of the following carbocations is (are) likely to undergo rearrangement through a methyl shift? H2C CH3 H3C CH3 H3C CH3 III a) both II and III Ob) both I and II Oc) Od) Question 42 (2 points) For the reaction shown, select the expected major organic product. 1. 1 eq HCI 2. 1 eq HBr Br. CI -Br -CI Ha CI Br + enantiomer + enantiomer + enantiomer CI Br + enantiomer IV 11 III...
Question 45 (2 points) For which of the following compounds will the M+2 peak intensity be equal to the intensity of the molecular ion peak M? oa) CH3CH2CH2NH2 ob) CH3CH2CH2Br OC) CH3CH2CH2C1 od) CH3CH2CH2OH Question 46 (2 points) Predict the major product(s) of the following reaction. Br2 light Ar o Br CHB CH-Br CHUB Br III IV Br Oa) IV Ob) III OC) 11 od) 1
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 43 (2 points) The reaction of 1,3-butadiene with hydrogen halide at 40°C will undergo addition under control O a) 1, 2; kinetic Ob) 1, 4; kinetic Oc) 1, 4; theromodynamic d) 1, 2; thermodynamic Question 44 (2 points) Provide the structure of the expected major organic product generated upon completion of the following reaction scheme: (CH3)3CCH2CH=CH2 HBO H₂O₂ H Br Br H (CHDECCHCH C (CH3),CCH2CH 11 Br Br ACCH.CH ICH, Section H (CH3)3CCH2CH-CH2 (CH3),CCHCH-CHE IV a) IV Ob) III...