Homework Answers
SN2 : It is a Bi molecular nucleophilic substitution reaction. (It is not unimolecular)
The reaction does not produce any intermediate. In the reaction all bond fromation and bond breaking are takes place simultaneously. Hence it is called concerted reaction ( so no intermediate will be formed in the reaction )
In SN2 reaction, the nucleophile attacks from the opposite side to leaving group and produce inversion configuration product , in case of chiral alkyl halids (so Statement 3 only true)
answer: Diplacement occurs with inversion of configuration
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Question 17 Which statement is true for SN2 reactions? Reactions are unimolecular with simultaneous bond making...
Which statement is true for Sn2 reactions? The rate of the reaction is dependent on the...
Which statement is true for Sn2 reactions? The rate of the reaction is dependent on the stability of a carbocation. The rate of reaction is dependent on just the substrate The fastest reaction will occur with a tertiary halide. Displacement occurs with inversion of configuration.
Which statement below is true regarding substitution mechanisms at a chiral center? a. Si reactions lead...
Which statement below is true regarding substitution mechanisms at a chiral center? a. Si reactions lead to inversion of configuration at the chiral carbon and Sy2 lead to a racemic mixture. b. Both Sy2 and Syl lead to retention of configuration. c. Both Sp2 and Syl lead to inversion of configuration. d. Sn2 reactions lead to inversion of configuration at the chiral carbon and Sy1 reactions lead to retention of configuration at the chiral carbon, e. Syl reactions lead to...
UW, Intro Organic Chemistry, 6e Help System Announcements Question 7 Which statements are true for Sn2...
UW, Intro Organic Chemistry, 6e Help System Announcements Question 7 Which statements are true for Sn2 reactions of haloalkanes? The greater the nucleophilicity of the nucleophile, the greater the rate of reaction. O Both the haloalkane and the nucleophile are involved in the transition state. Reaction results in the loss of optical activity. The reaction proceeds with inversion of configuration at the substitution center. The order of reactivity is 3° > 2° > 1° > methyl. The nucleophile must have...
Which of the following statements about the stereochemical outcomes of substitution reactions are TRUE? (check all...
Which of the following statements about the stereochemical outcomes of substitution reactions are TRUE? (check all that are true) The carbocation intermediate in SN1 reactions can be attacked from either side giving a mixture of stereoisomers. SN2 reactions give complete retention of configuration. SN2 reactions give only inversion of stereochemistry SN1 reactions give racemic products or mixtures of diastereomers.
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.
. TFW 6:25 PM @ 90% х Question The following two reactions are performed on the...
. TFW 6:25 PM @ 90% х Question The following two reactions are performed on the same starting material; one producing "product 1" and one producing "product 2" as the major products. Which of the following statements is false regarding these two reactions? Both of these reactions proceed via a carbocation intermediate. Product 1 is a substitution product. The leaving group in the reaction producing product 2 is H20. Product 2 is a disubstituted alkene. Both of these reactions proceed...
Question 10 3 points Which of the following is FALSE regarding Sn2 reactions? They always occur...
Question 10 3 points Which of the following is FALSE regarding Sn2 reactions? They always occur with the inversion of stereochemistry. They occur in a single, concerted step. Rearrangements can occur due the production of a carbocation intermediate. They are the preferred reaction of primary alkyl halides.
Question 13 (1 point) Which of the following is always true of solvolysis reactions? I. II....
Question 13 (1 point) Which of the following is always true of solvolysis reactions? I. II. III. They follow first order kinetics. They result in 100% inversion of configuration. They result in 100% racemization. None of these is true They result in 100% N E They result in 100% inversion of configuration. They follow first order kinetics.
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...
For the following substitution reactions, choose whether reaction A or B will proceed more quickly. If...
For the following substitution reactions, choose whether reaction A or B will proceed more quickly. If they will proceed at the same rate, put an equal sign,"=", in the box. Reaction Pair Faster? SN1 or SN2? A: CH3Br + CH30-→ CH3OCH3 + Br- B: CH3Br + CH3OH → CH3OCH3 + Br- + H+ Cl + NH3 NH + Cl + H+ B: Ya + Ho — you +C+++11+ OH + Cl + H+ I + NH3 NH2 +I+H+ SN2 ci...
Which statement is true for Sn2 reactions? The rate of the reaction is dependent on the stability of a carbocation. The rate of reaction is dependent on just the substrate The fastest reaction will occur with a tertiary halide. Displacement occurs with inversion of configuration.
Which statement below is true regarding substitution mechanisms at a chiral center? a. Si reactions lead to inversion of configuration at the chiral carbon and Sy2 lead to a racemic mixture. b. Both Sy2 and Syl lead to retention of configuration. c. Both Sp2 and Syl lead to inversion of configuration. d. Sn2 reactions lead to inversion of configuration at the chiral carbon and Sy1 reactions lead to retention of configuration at the chiral carbon, e. Syl reactions lead to...
UW, Intro Organic Chemistry, 6e Help System Announcements Question 7 Which statements are true for Sn2 reactions of haloalkanes? The greater the nucleophilicity of the nucleophile, the greater the rate of reaction. O Both the haloalkane and the nucleophile are involved in the transition state. Reaction results in the loss of optical activity. The reaction proceeds with inversion of configuration at the substitution center. The order of reactivity is 3° > 2° > 1° > methyl. The nucleophile must have...
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.
. TFW 6:25 PM @ 90% х Question The following two reactions are performed on the same starting material; one producing "product 1" and one producing "product 2" as the major products. Which of the following statements is false regarding these two reactions? Both of these reactions proceed via a carbocation intermediate. Product 1 is a substitution product. The leaving group in the reaction producing product 2 is H20. Product 2 is a disubstituted alkene. Both of these reactions proceed...
Question 10 3 points Which of the following is FALSE regarding Sn2 reactions? They always occur with the inversion of stereochemistry. They occur in a single, concerted step. Rearrangements can occur due the production of a carbocation intermediate. They are the preferred reaction of primary alkyl halides.
Question 13 (1 point) Which of the following is always true of solvolysis reactions? I. II. III. They follow first order kinetics. They result in 100% inversion of configuration. They result in 100% racemization. None of these is true They result in 100% N E They result in 100% inversion of configuration. They follow first order kinetics.
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...
For the following substitution reactions, choose whether reaction A or B will proceed more quickly. If they will proceed at the same rate, put an equal sign,"=", in the box. Reaction Pair Faster? SN1 or SN2? A: CH3Br + CH30-→ CH3OCH3 + Br- B: CH3Br + CH3OH → CH3OCH3 + Br- + H+ Cl + NH3 NH + Cl + H+ B: Ya + Ho — you +C+++11+ OH + Cl + H+ I + NH3 NH2 +I+H+ SN2 ci...
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