Homework Answers
Ans 2 : A) rate depends only on the concentration of nucleophile.
The SN2 reaction as the name suggests , is a nucleophilic substitution bimolecular reaction in which the rate of reaction depends on both the reagents.
The reaction takes place in 1st step and the product formed has an inverted configuration.
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2. Which of the following is not a characteristic of SN2 reactions? A. rate depends only...
UU Question 37 Which of the following is not a characteristic of S2 reactions? the electrophilic...
UU Question 37 Which of the following is not a characteristic of S2 reactions? the electrophilic carbon undergoes inversion of stereochemistry the rate is proportional to the concentration of carbon substrate the rate is proportional to the concentration of nucleophile the nucleophile is a very weak base Question 38 Which of the following is not a characteristic of Sn1 reactions? the electrophilic carbon undergoes inversion of stereochemistry the rate is proportional to the concentration of substrate the reaction proceeds in...
19 Which of the following statements is NOT true for an SN2 reaction? et red out...
19 Which of the following statements is NOT true for an SN2 reaction? et red out of Select one: a. The product involves retention of the stereochemistry in chiral substrates. O b. Steric crowding makes the nucleophilic attack become unfavourable. O c. It is a bimolecular that follows second order kinetics. O d. The product involves inversion of the stereochemistry in chiral substrates. e. Both the nucleophile and alkyl halide are involved in the rate determining step.
Which alkyl halide in each of the following reactions will react faster in an SN2 reaction...
Which alkyl halide in each of the following reactions will react faster in an SN2 reaction with hydroxide (-OH)? Explain. Hint, some of these compounds are unreactive in SN2 reactions- be sure to think about what type of alkyl halide undergoes SN2 reactions! Bromobenzene or benzyl bromide CH3Cl or (CH3)3Cl CH3CH=CHBr or H2C=CHCH2Br
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...
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.
7. Which of the following statements is TRUE? A) SN2 reactions occur with the same rate regardless of the structure...
7. Which of the following statements is TRUE? A) SN2 reactions occur with the same rate regardless of the structure of alkyl halide or substrate B) S2 reactions are concerted with no intermediate C) S 2 reactions proceed with the same rate regardless of the nucleophile used D) S2 reactions are best performed in polar protic solvents E) In an S 2 reaction, loss of the leaving group to give a carbocation is the rate-limiting step 8. Consider the following...
Which of the following features is not a characteristic of aromatic compounds? undergo addition reactions on...
Which of the following features is not a characteristic of aromatic compounds? undergo addition reactions on treatment with electrophiles completely conjugated high stability contain 4n+ 2 p electrons planar cyclic molecules
Chem 233 Exam III (A) October 28, 2019 Page 7 14. Which of the following would...
Chem 233 Exam III (A) October 28, 2019 Page 7 14. Which of the following would an of the following would be the best base for performing the following elimination? A KOCHA B. KOCH(CH) C. KOC(CH.) D. this reaction is not an elimination reaction 15. Which of the following statements is (are) true of Sul reactions of alkyl halides in general? A) The rate of an SNI reaction depends on the concentration of the alkyl halide. B) The rate of...
4. (5 pts) Complete the table comparing SN2 and SN1 reactions. SN2 SN1 rate k[R-XINuc] rate...
4. (5 pts) Complete the table comparing SN2 and SN1 reactions. SN2 SN1 rate k[R-XINuc] rate rate substrate reactivity methyl 1> 2 >> 3° polar, aprotic fastest stronger nucleophiles react faster solvent nucleophile inversion stereochemistry
Consider the SN2 reaction shown below and answer the following questions. Consider the SN1 reaction shown...
Consider the SN2 reaction shown below and answer the
following questions.
Consider the SN1 reaction shown below and answer the following
questions.
1. Consider the SN2 reaction shown below and answer the following questions. acetone Br NaSCH3 SCH3 NaBr + A. Write the rate law for the reaction B. Identify the nucleophile and the electrophile in the reaction C. State how each of the following factors would affect the rate of the reaction a. Increasing the concentration of 1-bromopropane. b....
UU Question 37 Which of the following is not a characteristic of S2 reactions? the electrophilic carbon undergoes inversion of stereochemistry the rate is proportional to the concentration of carbon substrate the rate is proportional to the concentration of nucleophile the nucleophile is a very weak base Question 38 Which of the following is not a characteristic of Sn1 reactions? the electrophilic carbon undergoes inversion of stereochemistry the rate is proportional to the concentration of substrate the reaction proceeds in...
19 Which of the following statements is NOT true for an SN2 reaction? et red out of Select one: a. The product involves retention of the stereochemistry in chiral substrates. O b. Steric crowding makes the nucleophilic attack become unfavourable. O c. It is a bimolecular that follows second order kinetics. O d. The product involves inversion of the stereochemistry in chiral substrates. e. Both the nucleophile and alkyl halide are involved in the rate determining step.
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...
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.
7. Which of the following statements is TRUE? A) SN2 reactions occur with the same rate regardless of the structure of alkyl halide or substrate B) S2 reactions are concerted with no intermediate C) S 2 reactions proceed with the same rate regardless of the nucleophile used D) S2 reactions are best performed in polar protic solvents E) In an S 2 reaction, loss of the leaving group to give a carbocation is the rate-limiting step 8. Consider the following...
Which of the following features is not a characteristic of aromatic compounds? undergo addition reactions on treatment with electrophiles completely conjugated high stability contain 4n+ 2 p electrons planar cyclic molecules
Chem 233 Exam III (A) October 28, 2019 Page 7 14. Which of the following would an of the following would be the best base for performing the following elimination? A KOCHA B. KOCH(CH) C. KOC(CH.) D. this reaction is not an elimination reaction 15. Which of the following statements is (are) true of Sul reactions of alkyl halides in general? A) The rate of an SNI reaction depends on the concentration of the alkyl halide. B) The rate of...
4. (5 pts) Complete the table comparing SN2 and SN1 reactions. SN2 SN1 rate k[R-XINuc] rate rate substrate reactivity methyl 1> 2 >> 3° polar, aprotic fastest stronger nucleophiles react faster solvent nucleophile inversion stereochemistry
Consider the SN2 reaction shown below and answer the
following questions.
Consider the SN1 reaction shown below and answer the following
questions.
1. Consider the SN2 reaction shown below and answer the following questions. acetone Br NaSCH3 SCH3 NaBr + A. Write the rate law for the reaction B. Identify the nucleophile and the electrophile in the reaction C. State how each of the following factors would affect the rate of the reaction a. Increasing the concentration of 1-bromopropane. b....
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