Question 19 (2 points) Which of the following compounds will undergo the fastest SN 1 reaction?...
Question 35 (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? Ha HD Hc Hd Oa) C-Hc Ob) C-Hb Oc) C-Ha O d) C-Hd Question 36 (2 points) Predict the major product(s) of the following reaction. Br2 light Br . Br Br CH2Br. CH2B1 -CH2Br Br IV Br O a) 11 Ob) IV Oc) III Od
Question 19 (2 points) The reaction of 1,3-butadiene with hydrogen halide at 40°C will undergo addition under control a) 1. 2; thermodynamic b) 1, 2; kinetic O c) 1,4; kinetic d) 1.4: theromodynamic Question 20 (2 points) In the molecule shown below, determine which of the highlighted C-H bonds a tod is expected to have the lowest bond dissociation energy? Ha HE Hс Hd a) C-Ha b) C-Hb DC-HC d) C-Hd Provloun Page
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 7 (2 points) Which of the following compounds will undergo the fastest Sn1 reaction? Br Br Br Br III IV a) III Ob) 11 O civ d) Question 8 (2 points) Identify the electrophile in the nitration of benzene reaction. a) NO b) HNO3 c) NO d) NO
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 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 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 9 (2 points) Identify the final product for the following reaction. 1. BH THE 2. O2, NaOH OH OH doy HII oa) IV ob) III OC) od) 11 Question 10 (2 points) Provide the structure of the expected major organic product generated upon completion of the following reaction scheme: (CH)CCH_CH=CH, HB HO H (CH)CCH.CH (снуусан,он- 1 Br (CH2jcChych do (touche con IV oa) IV ob) 11 oc) od) DI
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
Question 15 (2 points) Which of the following are possible products of the reaction shown? hv NBS Br Br IV Oa) I, II and III ob) I and II Oc) I, II, III and IV od) 1, III and IV Question 16 (2 points) Guess the structure of the compound using your understanding of chemical shifts. 2H PP انه IV oa) III ob) 1 oc) IV od) 11