Homework Answers
As we know. E1 is unimolecular kinetics.
So ,Rate = k[RX]
And reaction occurs in two distinct steps
(D) is correct
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Uop Which of the following statements are true halides (RX). ve about E1 reactions of alkyl...
20) Which of the following statements is true about SN1 reactions of alkyl halides? A) The...
20) Which of the following statements is true about SN1 reactions of alkyl halides? A) The reactions are favored by polar solvents. B) The reaction occurs via a one-step back-side attack. C) Complete inversion of configuration occurs. D) Reaction rates depend only on the concentration of the nucleophile. E) The reactions are favored by nonpolar solvents.
12. Label the following reactions as El or E2 * 01 - 0 a . CH...
12. Label the following reactions as El or E2 * 01 - 0 a . CH CH -- A. A =E1; B=E2 B.A=E1; B=E1 C. A E2: B-EI D. A=E2; B-E2 13. Consider the following exothermic E2 reaction. What rate equation would be observed for this reaction CH, CH CH I + KOC(CH3), CH CH CH2 + KI A. rate k[CHCH:CH-1) B. rate=k[CH,CH:CH:1][K OC(CH.)s] C. rate - [CH,CH:CH=1][K OC(CH);]* D. rate=k[CH,CH:CH-1)^[K OC(CH.):] E. There is not enough information given to...
For letters h & i : For each of the following reactions, predict the major mechanistic pathway (SN1/SN2/E1/E2...
For
letters h & i :
For each of the following reactions, predict the major
mechanistic pathway (SN1/SN2/E1/E2) and the major organic
products
1. (cont.) (h) НСОН CHB -CHBr HCOH - (0) CH,CH,CH,CH,Br- NH 2. For each of the following indicate which reaction will occur faster. Explain your reasoning. (No credit will be given for guesses) (a) The reaction of (CH),CBr with 0.001M aqueous NaOH or 0.10M aqueous NaOH (b) The reaction of 2-bromobutane with NaOH in DMSO or NaSH...
hich of the following statements about the reactions of alkyme A) The characteristic reactions of alkyl...
hich of the following statements about the reactions of alkyme A) The characteristic reactions of alkyl halides are addition and elimination B) The characteristic reactions of alkyl halides are addition and substitution C) The characteristic reactions of alkyl halides are elimination and substitution D) The characteristic reactions of alkyl halides are oxidation and reduction. 2. The reaction of 1-bromobutane with sodium hydroxide affords the substitution product 1-butanol. What would happen to the rate of the reaction if the concentration of...
Page 19 of Question 19 (1 point) Which of the following alkyl halides undergoes E1 reactions...
Page 19 of Question 19 (1 point) Which of the following alkyl halides undergoes E1 reactions with the fastest rate? A) B) D) Page 19 of 60 Next Page Previous Page
16. Which of the following is correct regarding Sy2 reactions of alkyl halides? A. Secondary halides...
16. Which of the following is correct regarding Sy2 reactions of alkyl halides? A. Secondary halides react faster than primary halides. B. Rate of reaction depends on the concentrations of the alkyl halide only. C. Favored in polar aprotic solvents D. Results in a racemic mixture
9. Which of the following alkyl halides is most rea order kinetics? y halides is most...
9. Which of the following alkyl halides is most rea order kinetics? y halides is most reactive in an elimination reaction having first- A. A B.B C.C D.D E. E 10. Which of the following statements is (are) true about an E2 elimination reaction? A. It is fastest with 3 halides. B. It exhibits second-order kinetics. C. A better leaving group should make a faster reaction. D. Both (It is fastest with 3 halides) and (It exhibits second order kinetics)...
Match the following statements with reaction mechanism SN1, SN2, E1, or E2. A statement may be...
Match the following statements with reaction mechanism
SN1, SN2, E1, or E2. A statement may be true
for one or more mechanisms.
a. The mechanism involves carbocation intermediates. b. The mechanism has two steps. c. The reaction rate increases with better leaving groups. d. The reaction rate increases when the solvent is changed from CH3OH to (CH3)2SO e. The reaction rate depends on the concentration of only the alkyl halide. f. The mechanism is concerted. g. The reaction of CH3CH2Br...
7. Which of the following statements is (are) true about a reaction that follows an Sul...
7. Which of the following statements is (are) true about a reaction that follows an Sul mechanism? A. The reaction is fastest with primary alkyl halides. B. The reaction exhibits a one-step mechanism. C. The reaction rate increases as the leaving group ability increases. D. The reaction rate increases as the strength of the nucleophile increases. E. Statements (The reaction rate increases as the leaving group ability increases) and (The reaction rate increases as the strength of the nucleophile increases)...
reactions generally give 6. According to more stable alkene product. 7. Elimination of Alkyl halides to yield alkenes occur by three mechanisms 8. In E1 bond break occurs first. 9. In ElcB bond b...
reactions generally give 6. According to more stable alkene product. 7. Elimination of Alkyl halides to yield alkenes occur by three mechanisms 8. In E1 bond break occurs first. 9. In ElcB bond break occurs first. Vocabulary Polar, ElcB, Nucleophilie, E1, Grignard's Reagent, E:2, Aprotic, Zaitsev's rule, Carbocation, Gilman reagents, acidic, C-H, C-x Q3. Write the formula of following groups. (Marks 12) Alkyl Group ii. Alkynyl Group ii. Vinylic Groupiv. Allylc Group Which of the four groups mentioned in Q3...
20) Which of the following statements is true about SN1 reactions of alkyl halides? A) The reactions are favored by polar solvents. B) The reaction occurs via a one-step back-side attack. C) Complete inversion of configuration occurs. D) Reaction rates depend only on the concentration of the nucleophile. E) The reactions are favored by nonpolar solvents.
12. Label the following reactions as El or E2 * 01 - 0 a . CH CH -- A. A =E1; B=E2 B.A=E1; B=E1 C. A E2: B-EI D. A=E2; B-E2 13. Consider the following exothermic E2 reaction. What rate equation would be observed for this reaction CH, CH CH I + KOC(CH3), CH CH CH2 + KI A. rate k[CHCH:CH-1) B. rate=k[CH,CH:CH:1][K OC(CH.)s] C. rate - [CH,CH:CH=1][K OC(CH);]* D. rate=k[CH,CH:CH-1)^[K OC(CH.):] E. There is not enough information given to...
For
letters h & i :
For each of the following reactions, predict the major
mechanistic pathway (SN1/SN2/E1/E2) and the major organic
products
1. (cont.) (h) НСОН CHB -CHBr HCOH - (0) CH,CH,CH,CH,Br- NH 2. For each of the following indicate which reaction will occur faster. Explain your reasoning. (No credit will be given for guesses) (a) The reaction of (CH),CBr with 0.001M aqueous NaOH or 0.10M aqueous NaOH (b) The reaction of 2-bromobutane with NaOH in DMSO or NaSH...
hich of the following statements about the reactions of alkyme A) The characteristic reactions of alkyl halides are addition and elimination B) The characteristic reactions of alkyl halides are addition and substitution C) The characteristic reactions of alkyl halides are elimination and substitution D) The characteristic reactions of alkyl halides are oxidation and reduction. 2. The reaction of 1-bromobutane with sodium hydroxide affords the substitution product 1-butanol. What would happen to the rate of the reaction if the concentration of...
Page 19 of Question 19 (1 point) Which of the following alkyl halides undergoes E1 reactions with the fastest rate? A) B) D) Page 19 of 60 Next Page Previous Page
16. Which of the following is correct regarding Sy2 reactions of alkyl halides? A. Secondary halides react faster than primary halides. B. Rate of reaction depends on the concentrations of the alkyl halide only. C. Favored in polar aprotic solvents D. Results in a racemic mixture
9. Which of the following alkyl halides is most rea order kinetics? y halides is most reactive in an elimination reaction having first- A. A B.B C.C D.D E. E 10. Which of the following statements is (are) true about an E2 elimination reaction? A. It is fastest with 3 halides. B. It exhibits second-order kinetics. C. A better leaving group should make a faster reaction. D. Both (It is fastest with 3 halides) and (It exhibits second order kinetics)...
Match the following statements with reaction mechanism
SN1, SN2, E1, or E2. A statement may be true
for one or more mechanisms.
a. The mechanism involves carbocation intermediates. b. The mechanism has two steps. c. The reaction rate increases with better leaving groups. d. The reaction rate increases when the solvent is changed from CH3OH to (CH3)2SO e. The reaction rate depends on the concentration of only the alkyl halide. f. The mechanism is concerted. g. The reaction of CH3CH2Br...
7. Which of the following statements is (are) true about a reaction that follows an Sul mechanism? A. The reaction is fastest with primary alkyl halides. B. The reaction exhibits a one-step mechanism. C. The reaction rate increases as the leaving group ability increases. D. The reaction rate increases as the strength of the nucleophile increases. E. Statements (The reaction rate increases as the leaving group ability increases) and (The reaction rate increases as the strength of the nucleophile increases)...
reactions generally give 6. According to more stable alkene product. 7. Elimination of Alkyl halides to yield alkenes occur by three mechanisms 8. In E1 bond break occurs first. 9. In ElcB bond break occurs first. Vocabulary Polar, ElcB, Nucleophilie, E1, Grignard's Reagent, E:2, Aprotic, Zaitsev's rule, Carbocation, Gilman reagents, acidic, C-H, C-x Q3. Write the formula of following groups. (Marks 12) Alkyl Group ii. Alkynyl Group ii. Vinylic Groupiv. Allylc Group Which of the four groups mentioned in Q3...
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