a) Interpretation: The more reactive nucleophile among the following pairs (CH 3 ) 2 N - or (CH 3 ) 2 NH Concept introduction: The major factor which affects the S N 2 reaction is nucleophile. Nucleophile may be negative or neutral charged. The reactivity of a nucleophile varies from reaction to reaction. It depends on the substrate, solvent and reactant concentrations.

Question

Which nucleophile in each pair which would give the faster SN2 rate? (a) (CH3)2S or (CH3)2Se (b) (CH3)3CO- or CH3O-

Answer 1

Question

Chapter 11.3, Problem 5P

Interpretation Introduction

a)

Interpretation:

The more reactive nucleophile among the following pairs

(CH₃)₂N^- or (CH₃)₂NH

Concept introduction:

The major factor which affects the S_N2 reaction is nucleophile. Nucleophile may be negative or neutral charged. The reactivity of a nucleophile varies from reaction to reaction. It depends on the substrate, solvent and reactant concentrations.

Interpretation Introduction

b)

Interpretation:

The more reactive nucleophile among the following pairs

(CH₃)₃B or (CH₃)₃N

Concept introduction:

The major factor which affects the S_N2 reaction is nucleophile. Nucleophile may be negative or neutral charged. The reactivity of a nucleophile varies from reaction to reaction. It depends on the substrate, solvent and reactant concentrations.

Interpretation Introduction

c)

Interpretation:

The more reactive nucleophile among the following pairs

H₂O or H₂S is to be stated.

Concept introduction:

The major factor which affects the S_N2 reaction is nucleophile. Nucleophile may be negative or neutral charged. The reactivity of a nucleophile varies from reaction to reaction. It depends on the substrate, solvent and reactant concentrations.

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Which nucleophile in each pair which would give the faster SN2 rate? (a) (CH3)2S or (CH3)2Se (b) (CH3)3CO- or CH3O-

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Answer 2

Question

Chapter 11.3, Problem 5P

Interpretation Introduction

a)

Interpretation:

The more reactive nucleophile among the following pairs

(CH₃)₂N^- or (CH₃)₂NH

Concept introduction:

The major factor which affects the S_N2 reaction is nucleophile. Nucleophile may be negative or neutral charged. The reactivity of a nucleophile varies from reaction to reaction. It depends on the substrate, solvent and reactant concentrations.

Interpretation Introduction

b)

Interpretation:

The more reactive nucleophile among the following pairs

(CH₃)₃B or (CH₃)₃N

Concept introduction:

The major factor which affects the S_N2 reaction is nucleophile. Nucleophile may be negative or neutral charged. The reactivity of a nucleophile varies from reaction to reaction. It depends on the substrate, solvent and reactant concentrations.

Interpretation Introduction

c)

Interpretation:

The more reactive nucleophile among the following pairs

H₂O or H₂S is to be stated.

Concept introduction:

The major factor which affects the S_N2 reaction is nucleophile. Nucleophile may be negative or neutral charged. The reactivity of a nucleophile varies from reaction to reaction. It depends on the substrate, solvent and reactant concentrations.

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Answer 3

Question

Chapter 11.3, Problem 5P

Interpretation Introduction

a)

Interpretation:

The more reactive nucleophile among the following pairs

(CH₃)₂N^- or (CH₃)₂NH

Concept introduction:

The major factor which affects the S_N2 reaction is nucleophile. Nucleophile may be negative or neutral charged. The reactivity of a nucleophile varies from reaction to reaction. It depends on the substrate, solvent and reactant concentrations.

Interpretation Introduction

b)

Interpretation:

The more reactive nucleophile among the following pairs

(CH₃)₃B or (CH₃)₃N

Concept introduction:

The major factor which affects the S_N2 reaction is nucleophile. Nucleophile may be negative or neutral charged. The reactivity of a nucleophile varies from reaction to reaction. It depends on the substrate, solvent and reactant concentrations.

Interpretation Introduction

c)

Interpretation:

The more reactive nucleophile among the following pairs

H₂O or H₂S is to be stated.

Concept introduction:

The major factor which affects the S_N2 reaction is nucleophile. Nucleophile may be negative or neutral charged. The reactivity of a nucleophile varies from reaction to reaction. It depends on the substrate, solvent and reactant concentrations.

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Answer 4

Question

Chapter 11.3, Problem 5P

Interpretation Introduction

a)

Interpretation:

The more reactive nucleophile among the following pairs

(CH₃)₂N^- or (CH₃)₂NH

Concept introduction:

The major factor which affects the S_N2 reaction is nucleophile. Nucleophile may be negative or neutral charged. The reactivity of a nucleophile varies from reaction to reaction. It depends on the substrate, solvent and reactant concentrations.

Interpretation Introduction

b)

Interpretation:

The more reactive nucleophile among the following pairs

(CH₃)₃B or (CH₃)₃N

Concept introduction:

The major factor which affects the S_N2 reaction is nucleophile. Nucleophile may be negative or neutral charged. The reactivity of a nucleophile varies from reaction to reaction. It depends on the substrate, solvent and reactant concentrations.

Interpretation Introduction

c)

Interpretation:

The more reactive nucleophile among the following pairs

H₂O or H₂S is to be stated.

Concept introduction:

The major factor which affects the S_N2 reaction is nucleophile. Nucleophile may be negative or neutral charged. The reactivity of a nucleophile varies from reaction to reaction. It depends on the substrate, solvent and reactant concentrations.

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Answer 5

Chapter 11.3, Problem 5P

Interpretation Introduction

a)

Interpretation:

The more reactive nucleophile among the following pairs

(CH₃)₂N^- or (CH₃)₂NH

Concept introduction:

The major factor which affects the S_N2 reaction is nucleophile. Nucleophile may be negative or neutral charged. The reactivity of a nucleophile varies from reaction to reaction. It depends on the substrate, solvent and reactant concentrations.

Interpretation Introduction

b)

Interpretation:

The more reactive nucleophile among the following pairs

(CH₃)₃B or (CH₃)₃N

Concept introduction:

The major factor which affects the S_N2 reaction is nucleophile. Nucleophile may be negative or neutral charged. The reactivity of a nucleophile varies from reaction to reaction. It depends on the substrate, solvent and reactant concentrations.

Interpretation Introduction

c)

Interpretation:

The more reactive nucleophile among the following pairs

H₂O or H₂S is to be stated.

Concept introduction:

The major factor which affects the S_N2 reaction is nucleophile. Nucleophile may be negative or neutral charged. The reactivity of a nucleophile varies from reaction to reaction. It depends on the substrate, solvent and reactant concentrations.

Answer 6

Chapter 11.3, Problem 5P

Interpretation Introduction

a)

Interpretation:

The more reactive nucleophile among the following pairs

(CH₃)₂N^- or (CH₃)₂NH

Concept introduction:

The major factor which affects the S_N2 reaction is nucleophile. Nucleophile may be negative or neutral charged. The reactivity of a nucleophile varies from reaction to reaction. It depends on the substrate, solvent and reactant concentrations.

Answer 7

Chapter 11.3, Problem 5P

Interpretation Introduction

a)

Interpretation:

The more reactive nucleophile among the following pairs

(CH₃)₂N^- or (CH₃)₂NH

Concept introduction:

The major factor which affects the S_N2 reaction is nucleophile. Nucleophile may be negative or neutral charged. The reactivity of a nucleophile varies from reaction to reaction. It depends on the substrate, solvent and reactant concentrations.

Answer 8

Interpretation Introduction

b)

Interpretation:

The more reactive nucleophile among the following pairs

(CH₃)₃B or (CH₃)₃N

Concept introduction:

The major factor which affects the S_N2 reaction is nucleophile. Nucleophile may be negative or neutral charged. The reactivity of a nucleophile varies from reaction to reaction. It depends on the substrate, solvent and reactant concentrations.

Answer 9

Interpretation Introduction

b)

Interpretation:

The more reactive nucleophile among the following pairs

(CH₃)₃B or (CH₃)₃N

Concept introduction:

The major factor which affects the S_N2 reaction is nucleophile. Nucleophile may be negative or neutral charged. The reactivity of a nucleophile varies from reaction to reaction. It depends on the substrate, solvent and reactant concentrations.

Answer 10

Interpretation Introduction

c)

Interpretation:

The more reactive nucleophile among the following pairs

H₂O or H₂S is to be stated.

Concept introduction:

The major factor which affects the S_N2 reaction is nucleophile. Nucleophile may be negative or neutral charged. The reactivity of a nucleophile varies from reaction to reaction. It depends on the substrate, solvent and reactant concentrations.

Answer 11

Interpretation Introduction

c)

Interpretation:

The more reactive nucleophile among the following pairs

H₂O or H₂S is to be stated.

Concept introduction:

The major factor which affects the S_N2 reaction is nucleophile. Nucleophile may be negative or neutral charged. The reactivity of a nucleophile varies from reaction to reaction. It depends on the substrate, solvent and reactant concentrations.

Answer 12

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Ch. 11.1 - Prob. 1P Ch. 11.2 - Prob. 2P Ch. 11.2 - Prob. 3P Ch. 11.3 - Prob. 4P Ch. 11.3 - Prob. 5P Ch. 11.3 - Rank the following compounds in order of their...Ch. 11.3 - Organic solvents like benzene, ether, and...Ch. 11.4 - Prob. 8P Ch. 11.4 - Prob. 9P Ch. 11.4 - Prob. 10P

Chapter 11 Solutions