(a) Interpretation: A curved-arrow mechanism corresponding to the hydroxide-catalyzed hydration of acetaldehyde is to be stated. Concept introduction: The chemical reaction in which a reactant combines with water molecule is known as hydration reaction. The addition of water with an unsaturated compound takes place to form a hydrated compound.

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Answer 1

Question

Chapter 19, Problem 19.15P

Interpretation Introduction

(a)

Interpretation:

A curved-arrow mechanism corresponding to the hydroxide-catalyzed hydration of acetaldehyde is to be stated.

Concept introduction:

The chemical reaction in which a reactant combines with water molecule is known as hydration reaction. The addition of water with an unsaturated compound takes place to form a hydrated compound.

Interpretation Introduction

(b)

Interpretation:

A curved-arrow mechanism corresponding to the decomposition of acetone cyanohydrin in aqueous hydroxide is to be stated. The reason as to why the ketone-cyanohydrin equilibrium favors the ketone at high pH is to be stated.

Concept introduction:

A chemical reaction in which a reactant breaks down to generate at least two products is known as decomposition reaction. The involvement of an energy source like heat also takes place in decomposition reaction.

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Students have asked these similar questions

(a) Explain the mechanism of a nucleophilic attack on the carbonyl group of an aldehyde or a ketone.(b) An organic compound (A) (molecular formula CgH16Q2) was hydrolysed with dilute sulphuric acid to give a carboxylic acid (B) and an alcohol (C). Oxidation of (C) with chromic acid also produced (B). On dehydration (C) gives but-1-ene. Write the equations for the reactions involved.

Give reasons :(a) Aniline is a weaker base than cyclohexyl amine.(b) It is difficult to prepare pure amines by ammonolysis of alkyl halides.

(a) Account for the following :(i) Propanal is more reactive than propanone towards nucleophilic reagents.(ii) Electrophilic substitution in benzoic acid takes place at meta position.(iii) Carboxylic acids do not give characteristic reactions of carbonyl group.(b) Give simple chemical test to distinguish between the following pairs of compounds:(i) Acetophenone and benzaldehyde(ii) Benzoic acid and ethylbenzoate.

Answer 2

Question

Chapter 19, Problem 19.15P

Interpretation Introduction

(a)

Interpretation:

A curved-arrow mechanism corresponding to the hydroxide-catalyzed hydration of acetaldehyde is to be stated.

Concept introduction:

The chemical reaction in which a reactant combines with water molecule is known as hydration reaction. The addition of water with an unsaturated compound takes place to form a hydrated compound.

Interpretation Introduction

(b)

Interpretation:

A curved-arrow mechanism corresponding to the decomposition of acetone cyanohydrin in aqueous hydroxide is to be stated. The reason as to why the ketone-cyanohydrin equilibrium favors the ketone at high pH is to be stated.

Concept introduction:

A chemical reaction in which a reactant breaks down to generate at least two products is known as decomposition reaction. The involvement of an energy source like heat also takes place in decomposition reaction.

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Answer 3

Question

Chapter 19, Problem 19.15P

Interpretation Introduction

(a)

Interpretation:

A curved-arrow mechanism corresponding to the hydroxide-catalyzed hydration of acetaldehyde is to be stated.

Concept introduction:

The chemical reaction in which a reactant combines with water molecule is known as hydration reaction. The addition of water with an unsaturated compound takes place to form a hydrated compound.

Interpretation Introduction

(b)

Interpretation:

A curved-arrow mechanism corresponding to the decomposition of acetone cyanohydrin in aqueous hydroxide is to be stated. The reason as to why the ketone-cyanohydrin equilibrium favors the ketone at high pH is to be stated.

Concept introduction:

A chemical reaction in which a reactant breaks down to generate at least two products is known as decomposition reaction. The involvement of an energy source like heat also takes place in decomposition reaction.

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Answer 4

Question

Chapter 19, Problem 19.15P

Interpretation Introduction

(a)

Interpretation:

A curved-arrow mechanism corresponding to the hydroxide-catalyzed hydration of acetaldehyde is to be stated.

Concept introduction:

The chemical reaction in which a reactant combines with water molecule is known as hydration reaction. The addition of water with an unsaturated compound takes place to form a hydrated compound.

Interpretation Introduction

(b)

Interpretation:

A curved-arrow mechanism corresponding to the decomposition of acetone cyanohydrin in aqueous hydroxide is to be stated. The reason as to why the ketone-cyanohydrin equilibrium favors the ketone at high pH is to be stated.

Concept introduction:

A chemical reaction in which a reactant breaks down to generate at least two products is known as decomposition reaction. The involvement of an energy source like heat also takes place in decomposition reaction.

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Answer 5

Chapter 19, Problem 19.15P

Interpretation Introduction

(a)

Interpretation:

A curved-arrow mechanism corresponding to the hydroxide-catalyzed hydration of acetaldehyde is to be stated.

Concept introduction:

The chemical reaction in which a reactant combines with water molecule is known as hydration reaction. The addition of water with an unsaturated compound takes place to form a hydrated compound.

Interpretation Introduction

(b)

Interpretation:

A curved-arrow mechanism corresponding to the decomposition of acetone cyanohydrin in aqueous hydroxide is to be stated. The reason as to why the ketone-cyanohydrin equilibrium favors the ketone at high pH is to be stated.

Concept introduction:

A chemical reaction in which a reactant breaks down to generate at least two products is known as decomposition reaction. The involvement of an energy source like heat also takes place in decomposition reaction.

Answer 6

Chapter 19, Problem 19.15P

Interpretation Introduction

(a)

Interpretation:

A curved-arrow mechanism corresponding to the hydroxide-catalyzed hydration of acetaldehyde is to be stated.

Concept introduction:

The chemical reaction in which a reactant combines with water molecule is known as hydration reaction. The addition of water with an unsaturated compound takes place to form a hydrated compound.

Answer 7

Chapter 19, Problem 19.15P

Interpretation Introduction

(a)

Interpretation:

A curved-arrow mechanism corresponding to the hydroxide-catalyzed hydration of acetaldehyde is to be stated.

Concept introduction:

The chemical reaction in which a reactant combines with water molecule is known as hydration reaction. The addition of water with an unsaturated compound takes place to form a hydrated compound.

Answer 8

Interpretation Introduction

(b)

Interpretation:

A curved-arrow mechanism corresponding to the decomposition of acetone cyanohydrin in aqueous hydroxide is to be stated. The reason as to why the ketone-cyanohydrin equilibrium favors the ketone at high pH is to be stated.

Concept introduction:

A chemical reaction in which a reactant breaks down to generate at least two products is known as decomposition reaction. The involvement of an energy source like heat also takes place in decomposition reaction.

Answer 9

Interpretation Introduction

(b)

Interpretation:

A curved-arrow mechanism corresponding to the decomposition of acetone cyanohydrin in aqueous hydroxide is to be stated. The reason as to why the ketone-cyanohydrin equilibrium favors the ketone at high pH is to be stated.

Concept introduction:

A chemical reaction in which a reactant breaks down to generate at least two products is known as decomposition reaction. The involvement of an energy source like heat also takes place in decomposition reaction.

Answer 10

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Answer 11

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Answer 12

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Answer 13

Ch. 19 - Prob. 19.1P Ch. 19 - Prob. 19.2P Ch. 19 - Prob. 19.3P Ch. 19 - Prob. 19.4P Ch. 19 - Prob. 19.5P Ch. 19 - Prob. 19.6P Ch. 19 - Prob. 19.7P Ch. 19 - Prob. 19.8P Ch. 19 - Prob. 19.9P Ch. 19 - Prob. 19.10P

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Chapter 19 Solutions