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its conjugate base. more b. less c. impossible to know 13. To which of the labeled...
Page < 2 > of 5 0 8) In the most stable conformation of tert-butylcyclohexane, how...
Page < 2 > of 5 0 8) In the most stable conformation of tert-butylcyclohexane, how many axial hydrogen atoms are present? a. O Eb. 2 e. 6 9) Which statement is true concerning the mechanism for reaction between HBr and H2C=CH2 to form bromoethane? a the reaction forms mechanism shows electron movement using full arrows, e.g. b. the reaction involves a slow, rate-determining formation of a radical intermediate c. the reaction involves homolysis d. In the first step, HBr...
12. What is the alternate chair conformation of the following compound? IV A) I B) II C) III D) IV 13 What is the r...
12. What is the alternate chair conformation of the following compound? IV A) I B) II C) III D) IV 13 What is the relationship between the following two compounds? and A) Constitutional isomers B) Identical C) Stereoisomers D) Not isomers, different compounds 14. What is the relationship between the following two compounds? and A) Constitutional isomers B) Identical C) Stereoisomers Not isomers, different compounds What is the relationship between the following two compounds? 15. and C) Identical Not isomers,...
A. two B. four C. six D. eight 15. Which one of the following compounds has highest boiling point? I. CH3CH2CH3 II....
A. two B. four C. six D. eight 15. Which one of the following compounds has highest boiling point? I. CH3CH2CH3 II. CH3CH2OH III. CHOCH A. I B . II C. III 16. What occurs when an optically active alcohol reacts with HBr to give an alkyl halide? A complete inversion of configuration takes place at the chirality center B. incomplete and varying inversion of configuration takes place at the chirality center C. the chirality center retains its configuration D....
Please answer all (A) Enantiomers (B) Diastereomers (C Same Compound (D)Constitutional Isomers (E) meso-compound 5. Which...
Please answer all
(A) Enantiomers (B) Diastereomers (C Same Compound (D)Constitutional Isomers (E) meso-compound 5. Which Newman projection represents the most stable conformation of (CH)CHCHCH,)? HyC (A) 6 Which of the following energy diagrams shows a concerted endothermic reaction? 7. Identify the IV (E) V (A) (B) II (C III (D)IV 8. Which compound below has a meso form? A. 1,22 -dichlorobutane butane B. 1,3- dichloro C. 2,3 -dichlo D. 1,4- dichlorobutane 9. Which of the following is the strongest...
Chapter 11: 1. What is a prime rule in naming alkenes? a. Find the longest carbon...
Chapter 11: 1. What is a prime rule in naming alkenes? a. Find the longest carbon chain. b.Find the longest carbon chain containing the alkene. c. Find whether the alkene has a cis- or trans- configuration. d.Find how far the alkene functionality is from either end. 2. What is the IUPAC name of the following alkene? a. cis-5-methyl-2-heptene b. trans-2-ethyl-4-hexene c. trans-5-methyl-2-heptene d. trans-3-methyl-5-heptene 3. What is the hybridization, geometry, and bond angle of the carbon marked by an asterisk?...
which of the following is the structure of 2-ethylbenzamide 3. (20 points) The following alcohol undergo...
which of the following is the structure of
2-ethylbenzamide
3. (20 points) The following alcohol undergo chromic acid test. Complete the blank for each alcohol Color after reaction is test positive or negative? Class of Alcohol CH₂ - CHCH, CH, CH, ан,— —днан, Color after reaction is test positive or negative? Class of Alcohol Color after reaction is test positive or negative? Class of Alcohol at CH2OH & CH₂ CH3 6th c Color after reaction is test positive or negative?...
4. The basie differences between RNA and DNA are a. the organic bases only b. bases, ribose uaits...
4. The basie differences between RNA and DNA are a. the organic bases only b. bases, ribose uaits, and the phosphodiester linkage c. bases, ribose units, and the glycosidic bond type bases and the ribose units oaly 5. The solubility characteristics of the pyrimidine or purine bases and the corresponding nucleosides differ greatly. Which of the following statements is not true? a. purine bases are quite soluble in water b, nucleosides are much more soluble than the corresponding bases c....
no explanation needed, just letters that correspond with right answers. thanks! Name Exam 2: Chapters 4-7...
no
explanation needed, just letters that correspond with right
answers. thanks!
Name Exam 2: Chapters 4-7 Please put all of your answers on the scantron sheet. This exam paper must be returned with the scar For questions that list only 1,2,3,4, use the letters a,b.c.d respectively on the Scantron 1. What is the approximate value of the H-C-H bonds angle in ethylene? a. 90° b. 109 c. 120 d. 180 2. What type of molecular orbital is formed by the...
(C) Protonation of alkene to form a carbocation followed by addition of bromide ion (D) Addition...
(C) Protonation of alkene to form a carbocation followed by addition of bromide ion (D) Addition of the proton to one face of the alkene with simultaneous delivery of a bromide ion from a different molecule of H-Br. 11. Which compound is the strongest nmucleophile for reaction of methane methanesulfonate (CHOS0.CH) in methanol at room temperature? (You may assume that everything is soluble in methanol) (A) potassium bromide (B) cesium iodide (C) sodiam chloride (D) lithium flaoride 12. Which proton...
What results when a secondary alcohol is oxidized? a. a ketone d. an acid b. an...
What results when a secondary alcohol is oxidized? a. a ketone d. an acid b. an amine e. no reaction c. an aldehyde Which of the following combinations will react spontaneously? A. 12 + Cu2+ B. Pb2+ + Ag C. Zn2+ + Mg D. Sn2+ + Ni2+ The general formula for a cycloalkane can be represented by which of the following? a. C,H, C. CH b. C.H2n+2 d. C.H21-2 In a certain reaction AH =-136 kJ and E, = 96...
Page < 2 > of 5 0 8) In the most stable conformation of tert-butylcyclohexane, how many axial hydrogen atoms are present? a. O Eb. 2 e. 6 9) Which statement is true concerning the mechanism for reaction between HBr and H2C=CH2 to form bromoethane? a the reaction forms mechanism shows electron movement using full arrows, e.g. b. the reaction involves a slow, rate-determining formation of a radical intermediate c. the reaction involves homolysis d. In the first step, HBr...
12. What is the alternate chair conformation of the following compound? IV A) I B) II C) III D) IV 13 What is the relationship between the following two compounds? and A) Constitutional isomers B) Identical C) Stereoisomers D) Not isomers, different compounds 14. What is the relationship between the following two compounds? and A) Constitutional isomers B) Identical C) Stereoisomers Not isomers, different compounds What is the relationship between the following two compounds? 15. and C) Identical Not isomers,...
A. two B. four C. six D. eight 15. Which one of the following compounds has highest boiling point? I. CH3CH2CH3 II. CH3CH2OH III. CHOCH A. I B . II C. III 16. What occurs when an optically active alcohol reacts with HBr to give an alkyl halide? A complete inversion of configuration takes place at the chirality center B. incomplete and varying inversion of configuration takes place at the chirality center C. the chirality center retains its configuration D....
Please answer all
(A) Enantiomers (B) Diastereomers (C Same Compound (D)Constitutional Isomers (E) meso-compound 5. Which Newman projection represents the most stable conformation of (CH)CHCHCH,)? HyC (A) 6 Which of the following energy diagrams shows a concerted endothermic reaction? 7. Identify the IV (E) V (A) (B) II (C III (D)IV 8. Which compound below has a meso form? A. 1,22 -dichlorobutane butane B. 1,3- dichloro C. 2,3 -dichlo D. 1,4- dichlorobutane 9. Which of the following is the strongest...
which of the following is the structure of
2-ethylbenzamide
3. (20 points) The following alcohol undergo chromic acid test. Complete the blank for each alcohol Color after reaction is test positive or negative? Class of Alcohol CH₂ - CHCH, CH, CH, ан,— —днан, Color after reaction is test positive or negative? Class of Alcohol Color after reaction is test positive or negative? Class of Alcohol at CH2OH & CH₂ CH3 6th c Color after reaction is test positive or negative?...
4. The basie differences between RNA and DNA are a. the organic bases only b. bases, ribose uaits, and the phosphodiester linkage c. bases, ribose units, and the glycosidic bond type bases and the ribose units oaly 5. The solubility characteristics of the pyrimidine or purine bases and the corresponding nucleosides differ greatly. Which of the following statements is not true? a. purine bases are quite soluble in water b, nucleosides are much more soluble than the corresponding bases c....
no
explanation needed, just letters that correspond with right
answers. thanks!
Name Exam 2: Chapters 4-7 Please put all of your answers on the scantron sheet. This exam paper must be returned with the scar For questions that list only 1,2,3,4, use the letters a,b.c.d respectively on the Scantron 1. What is the approximate value of the H-C-H bonds angle in ethylene? a. 90° b. 109 c. 120 d. 180 2. What type of molecular orbital is formed by the...
(C) Protonation of alkene to form a carbocation followed by addition of bromide ion (D) Addition of the proton to one face of the alkene with simultaneous delivery of a bromide ion from a different molecule of H-Br. 11. Which compound is the strongest nmucleophile for reaction of methane methanesulfonate (CHOS0.CH) in methanol at room temperature? (You may assume that everything is soluble in methanol) (A) potassium bromide (B) cesium iodide (C) sodiam chloride (D) lithium flaoride 12. Which proton...
What results when a secondary alcohol is oxidized? a. a ketone d. an acid b. an amine e. no reaction c. an aldehyde Which of the following combinations will react spontaneously? A. 12 + Cu2+ B. Pb2+ + Ag C. Zn2+ + Mg D. Sn2+ + Ni2+ The general formula for a cycloalkane can be represented by which of the following? a. C,H, C. CH b. C.H2n+2 d. C.H21-2 In a certain reaction AH =-136 kJ and E, = 96...
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