Worksheet 6.1Nucleophilic substitutions (SN1 and SN2)1. In a typical SN2 substitution reaction, a nucleophile (Nuc-) reacts with an alkylhalide that contains a leaving group (X-) in a one-step process.a) Label nucleophile, alkyl halide and leaving group in each of the followingreactionsb) What bond is formed in this reactions and what bond is broken? Show curlyarrow to show mechanism in each case.H3C CH2H3C-CH2CI:: NaH3H₂C-BrCH2AlhyHalideNaCNNC0-CH2CH3+CH2+ NaBrCH2CH₂S Nat + H3C+ NaBrBrH₂C-CH3NaClLy

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Answered: Worksheet 6.1 Nucleophilic…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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1. Write the general mechanism for a Nucleophilic Substitution Reaction.
Which of the statements below is true regarding the reactivity of benzene? Select one: a. Being rich in electron, benzene acts as an electrophile in a substitution reaction. Ob. Because of loosely held n electrons, benzene is less reactive than alkene. O . Substitution is preferred over elimination reaction to maintain benzene's aromaticity. O d. The presence of an acid catalyst is added in order to enhance benzene's electrophilicity.
2) Draw 3 different molecules: 1. One with a primary carbon leaving group 2. One with a secondary carbon leaving group 3. One with a tertiary carbon leaving group Explain which one is best suited for the bimolecular substitution (SN2) reaction any why.
a) Draw the arrow-pushing mechanism for the reaction of hydronium with ethanol. Include all lone pairs and non-zero formal charges. b) Draw the arrow-pushing mechanism for the reaction of NaNH₂ with chloroform. Include all lone pairs and non-zero formal charges. c) Draw the arrow-pushing mechanism for the reaction of sodium hydroxide with phenol. Include all lone pairs and non-zero formal charges. d) Are any of the above reactions reversible? Do any of them go to completion? Explain your answer.
Use the image below to answer the following three questions. Note: Subscripts are not shown in answer choices, ex: H2 should be H2, NH3 should be NH3. Product A Product B Product C a. The reagents that would selectively yield ProductA are [ Select] b. The reagents that would selectively yield Product B are [Select] c. The reagents that would selectively yield Product Care [Select]
What would be the effect on the rate of reaction if the concentration of the nucleophile weredoubled in an…a. SN1 reaction? Briefly explain.b. SN2 reaction? Briefly explain.
Draw the full electron pushing mechanism for the reaction depicted including ALL intermediates (with lone pairs and formal charges). Clearly label the electrophile and nucleophile in each step where appropriate.
Four of the seven steps in the mechanism for this process are shown in the conversion of acetal A to hemiacetal E. a.) Add curved arrows for each step b.) Draw another resonance structure for C.c.) Identify the nucleophile and electrophile in Step [3].d.) Which steps are Brønsted–Lowry acid–base reactions?
Type 2 electrophilic addition reaction
What other alkene is also formed along with Y in Sample Problem 9.3? What alkenes would form from X if no carbocation rearrangement occurred?
A Moving to another question will save this response. Question 12 Identify the electrophile in a Friedel-Crafts alkylation (remember: the one that will react with the benzene ring) O aluminum tetrachloride ion O radical O carbocation O aluminum chloride O carbanion A Moving to another question will save this response.
15. Polar protic solvents favor substitution because A) the SN2 mechanism they are weakly slovationg and the nucleophile is able to react rapidly. B) they strongly solvate the nucleophile lowering activation energy for formation of the transition state in the SN2 mechanism. C) they weakly solvate the leaving group allowing rapid loss of the halide according to the Hammond postulate. D) they strongly solvate the leaving group stabilizing the transition state for SN1 reactions according to the Hammond postulate.

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