45
Br has same intensity ratio for isotopes. Two isotopes of Br has intentity ratio equal to 1:1.
compound containing Be will have same intensity of M+2 and base peak.
46.
Br2/hv is free radical bromination at substrate. Bromination is favoured at 3 degree carbon, 2 degree and 1 degree carbon.
product I is the bromination at 3 degree carbon.
D is the correct option.
Question 45 (2 points) For which of the following compounds will the M+2 peak intensity be...
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 5 (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? a) CH3CH2CH OH 0 b) CHỊCH CHANH, Oc) CH3CH2CH_Br d) CH,CH2CH2C1 Question 6 (2 points) What is the product of the reaction below? "OH PCC o OH O OH TV a) Obiy c)
Question 3 (2 points) Predict the product(s) of the following reaction. HBr ROOR a) HBr addition at the alkene position following Markonikov's rule Ob) H20 addition at the alkene position following Markonikov's rule c) HBr addition at the alkene position following Anti-Markonikov's rule d) H20 addition at the alkene position following Anti-Markonikov's rule Question 4 (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? a)...
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 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 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
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 27 (2 points) Which of the following substituents will not direct the incoming group to the ortho/para position during electrophilic aromatic substitution? Oa) -OCOCH3 ob) -COOCH3 OC) -CH2CH3 od) -N(CH3)2 Question 28 (2 points) Provide the reagents necessary to carry out the following conversion. OH OH B Br Br oa) Br2, hn ob) HBr (3 moles) oc) Br2, FeBr3 od) Br2
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 1 (2 points) Which one of the following compounds is aromatic? IV O a) 1 Ob) III Oc) IV O d) 11 Question 2 (2 points) Which structure shown below represents (Z)-3,5-dichloro-3- hexen-1-yne? CI IV 11 TIT O a) Ob) III Oc) 11 Od) IV