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Question 35 Which of the following would be the strongest acid? CI COH COH COH CI...
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QUESTION 23 Which of the following would be the strongest acid? Cl .CoH CoH CO2H CI CI CI II I co-H coH CI CI CI V IV OA. IV B. V C. II D.I E. II QUESTION 24 Which of the following would be the strongest acid? NO2 COH CO2H O2N NO2 0N II I .CO2H COo-H NO2 NO2 V IV OA V B. II C. II D....
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26. Which of the following would be the strongest acid? согн согн Ci созн tI cozii Cl B) 11 C) II D) IV E) V Which of the following would be the strongest acid? CH 27. CO2H согн CH CH3 HC IV A) I B) 11 C) III D) IV E) V What is the expected product, A, of the following reaction sequence? 28. Cl i. Mg/ether IL. FH B) C&HsCH COOH D) C&HsCHCICOOH
Question 27 Which compound would be the strongest acid? A. CH3CCl2CH2CO2H B. CH3CHCICHCICO 2H C. CHCI2CH2CH2CO2H D. CICH 2 CHCICH 2 CO2H E. CH3CH2CCl2CO2H Question 28 What would be the product of the following reaction? OH 180. HA ? 180 180. 18 180 III I II 80 II III A. B. III C. V D.IV E. II
Question 7 Predict the major organic product of the reaction sequence, i. NH3, H20 M ii. dilute Ha, cold O O OH NH2 NH2 HO HO HN I II III H N HN IV V CA. V B. III C. 11 DIV E. I Question 8 Which of the following would be the strongest acid? NO2 COH COH COH ON ON "NO2 I II III COH COH NO2 ON "NO2 IV V A. IV B. III C. I D. II...
Question 33 The correct structure for ethyl 2-chloropentanoyl chloride is: o OH CI CI ОН OH I II III "CI CI CI IV V A. II B. I C. IV D.V E. III Question 34 A compound with the molecular formula Cg4 gBro gave the following H NMR spectrum: triplet, 5 1.4 quartet, 8 3.9 multiplet, 5 7.0 (4H) There was no evidence of an -OH band in the IR spectrum. A possible structure for the compound is: Br Br...
Question 3 Which of the following is a keto-enol tautomeric pair? OH OH OH and and o and COM OH I II III он OH a and a and IV CA. 1 B. V C.II D. IV E. III Question 4 What would be the major product of the following reaction sequence? он PCC 1. LDA(-78C) 2. CHCHOI ? CH C1 HO వరలో I II MI o IV A. II B. I C. V D. III E. IV
17. Which of the following compounds is the strongest acid? A. 1 OH B. II C. III D. IV E. V CN NO2 NO2 1 - II III CN CN 요 CO2Et IV V
Question 29 1. CH3CH2MgBr H Cr04 Which of the following is a synthesis of 3-heptanone? CA. 1. DMSO, (COCI)2 CH3CH2CH2CH2CH2OH 2. EtzN B. CH(CH3)2CH Li H30+ CH3CH2CN ether 2. H30* с с. PBr3 NaCN CH3CH2MgBr H30+ CH3CH2CH2CH2OH ether ether D. 1.03 2. Zn/H E. All of these choices are syntheses of 3-heptanone. Question 30 A compound with the molecular formula C 10H 13Cl gave the following 1H NMR spectrum: singlet, 8 1.6 singlet, 3.1 multiplet, 5 7.2 (5H) The most...
QUESTION 41 The reaction of an alcohol with a carboxylic acid under acidic conditions results in an ester. How many nelementary mechanic steps are reasonable for this transformation? 3 7 QUESTION 42 Which of the following compounds would have a quartet in the NMR spectrum near 4.1? COH CHO Y Śs II III IV 0 0 0 0 111 IV TION 2 Which of the following are romane QUESTION QUESTION 4 Which structure has the correct formal charge? F* CI...
Question 15 Which of the following would undergo epimerization in base? You ☺ II III IV A. I B. II C. III D. IV E. Both III and IV Question 16 What is the correct structure for 3-phenylpropanal? MY II H IV V ООООО CA. II B. C. IV D.V E. III