Whether the given ketone compound exhibit rotational symmetry has to be checked. Concept Introduction: A molecule is said to possess a symmetry element if the molecule is unchanged in appearance after applying the symmetry operation corresponding to the symmetry element. There are different types of symmetries such as rotational, reflectional, inversion, and improper rotation. A molecule has rotational symmetry only if you rotate less than one full turn; it is the same as the original shape. For example, The cyclobutane has rotational symmetry; it is same as the original shape after 90 0 rotation.

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Answer 1

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Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 5, Problem 78CP

(a)

Interpretation Introduction

Interpretation:

Whether the given ketone compound exhibit rotational symmetry has to be checked.

Concept Introduction:

A molecule is said to possess a symmetry element if the molecule is unchanged in appearance after applying the symmetry operation corresponding to the symmetry element.

There are different types of symmetries such as rotational, reflectional, inversion, and improper rotation.

A molecule has rotational symmetry only if you rotate less than one full turn; it is the same as the original shape.

For example,

The cyclobutane has rotational symmetry; it is same as the original shape after 900 rotation.

(b)

Interpretation Introduction

Interpretation:

Whether the given ketone compound exhibit reflectional symmetry has to be checked.

Concept Introduction:

A molecule is said to possess a symmetry element if the molecule is unchanged in appearance after applying the symmetry operation corresponding to the symmetry element.

There are different types of symmetries such as rotational, reflectional, inversion, and improper rotation.

Reflectional symmetry is also known as line symmetry is a type of balance in which a center line called line of symmetry (plane of symmetry) divides an object in half so that one side mirrors the other.

Plane of symmetry: When structure of the compound can be cut into two equal halves along the plane. Then such plane is called as plane of symmetry.

Example for a molecule which has reflectional symmetry is,

(c)

Interpretation Introduction

Interpretation:

Whether the compound is chiral or achiral and if it is a chiral compound its enantiomer has to be drawn.

Concept Introduction:

A molecule is said to possess a symmetry element if the molecule is unchanged in appearance after applying the symmetry operation corresponding to the symmetry element.

There are different types of symmetries such as rotational, reflectional, inversion, and improper rotation.

Reflectional symmetry is also known as line symmetry is a type of balance in which a center line called line of symmetry divides an object in half so that one side mirrors the other.

A molecule has rotational symmetry only if you rotate less than one full turn; it is the same as the original shape.

Chiral center: A chiral center is defined as the tetrahedral carbon atom in an organic molecule that is connected to four non-identical groups/substituents. It is sometimes known as a stereo genic center.

Chirality: The geometric property of molecules where the structure of the molecule and its mirror image are not superimposable is known as chirality. Chiral molecules are optically active and they can rotate the plane polarized light.

Chirality is not dependent on the presence or absence of rotational symmetry. It is only dependent on the presence or absence of reflectional symmetry.

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Answer 2

Question

Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 5, Problem 78CP

(a)

Interpretation Introduction

Interpretation:

Whether the given ketone compound exhibit rotational symmetry has to be checked.

Concept Introduction:

A molecule is said to possess a symmetry element if the molecule is unchanged in appearance after applying the symmetry operation corresponding to the symmetry element.

There are different types of symmetries such as rotational, reflectional, inversion, and improper rotation.

A molecule has rotational symmetry only if you rotate less than one full turn; it is the same as the original shape.

For example,

The cyclobutane has rotational symmetry; it is same as the original shape after 900 rotation.

(b)

Interpretation Introduction

Interpretation:

Whether the given ketone compound exhibit reflectional symmetry has to be checked.

Concept Introduction:

A molecule is said to possess a symmetry element if the molecule is unchanged in appearance after applying the symmetry operation corresponding to the symmetry element.

There are different types of symmetries such as rotational, reflectional, inversion, and improper rotation.

Reflectional symmetry is also known as line symmetry is a type of balance in which a center line called line of symmetry (plane of symmetry) divides an object in half so that one side mirrors the other.

Plane of symmetry: When structure of the compound can be cut into two equal halves along the plane. Then such plane is called as plane of symmetry.

Example for a molecule which has reflectional symmetry is,

(c)

Interpretation Introduction

Interpretation:

Whether the compound is chiral or achiral and if it is a chiral compound its enantiomer has to be drawn.

Concept Introduction:

A molecule is said to possess a symmetry element if the molecule is unchanged in appearance after applying the symmetry operation corresponding to the symmetry element.

There are different types of symmetries such as rotational, reflectional, inversion, and improper rotation.

Reflectional symmetry is also known as line symmetry is a type of balance in which a center line called line of symmetry divides an object in half so that one side mirrors the other.

A molecule has rotational symmetry only if you rotate less than one full turn; it is the same as the original shape.

Chiral center: A chiral center is defined as the tetrahedral carbon atom in an organic molecule that is connected to four non-identical groups/substituents. It is sometimes known as a stereo genic center.

Chirality: The geometric property of molecules where the structure of the molecule and its mirror image are not superimposable is known as chirality. Chiral molecules are optically active and they can rotate the plane polarized light.

Chirality is not dependent on the presence or absence of rotational symmetry. It is only dependent on the presence or absence of reflectional symmetry.

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Answer 3

Question

Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 5, Problem 78CP

(a)

Interpretation Introduction

Interpretation:

Whether the given ketone compound exhibit rotational symmetry has to be checked.

Concept Introduction:

A molecule is said to possess a symmetry element if the molecule is unchanged in appearance after applying the symmetry operation corresponding to the symmetry element.

There are different types of symmetries such as rotational, reflectional, inversion, and improper rotation.

A molecule has rotational symmetry only if you rotate less than one full turn; it is the same as the original shape.

For example,

The cyclobutane has rotational symmetry; it is same as the original shape after 900 rotation.

(b)

Interpretation Introduction

Interpretation:

Whether the given ketone compound exhibit reflectional symmetry has to be checked.

Concept Introduction:

A molecule is said to possess a symmetry element if the molecule is unchanged in appearance after applying the symmetry operation corresponding to the symmetry element.

There are different types of symmetries such as rotational, reflectional, inversion, and improper rotation.

Reflectional symmetry is also known as line symmetry is a type of balance in which a center line called line of symmetry (plane of symmetry) divides an object in half so that one side mirrors the other.

Plane of symmetry: When structure of the compound can be cut into two equal halves along the plane. Then such plane is called as plane of symmetry.

Example for a molecule which has reflectional symmetry is,

(c)

Interpretation Introduction

Interpretation:

Whether the compound is chiral or achiral and if it is a chiral compound its enantiomer has to be drawn.

Concept Introduction:

A molecule is said to possess a symmetry element if the molecule is unchanged in appearance after applying the symmetry operation corresponding to the symmetry element.

There are different types of symmetries such as rotational, reflectional, inversion, and improper rotation.

Reflectional symmetry is also known as line symmetry is a type of balance in which a center line called line of symmetry divides an object in half so that one side mirrors the other.

A molecule has rotational symmetry only if you rotate less than one full turn; it is the same as the original shape.

Chiral center: A chiral center is defined as the tetrahedral carbon atom in an organic molecule that is connected to four non-identical groups/substituents. It is sometimes known as a stereo genic center.

Chirality: The geometric property of molecules where the structure of the molecule and its mirror image are not superimposable is known as chirality. Chiral molecules are optically active and they can rotate the plane polarized light.

Chirality is not dependent on the presence or absence of rotational symmetry. It is only dependent on the presence or absence of reflectional symmetry.

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Answer 4

Question

Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 5, Problem 78CP

(a)

Interpretation Introduction

Interpretation:

Whether the given ketone compound exhibit rotational symmetry has to be checked.

Concept Introduction:

A molecule is said to possess a symmetry element if the molecule is unchanged in appearance after applying the symmetry operation corresponding to the symmetry element.

There are different types of symmetries such as rotational, reflectional, inversion, and improper rotation.

A molecule has rotational symmetry only if you rotate less than one full turn; it is the same as the original shape.

For example,

The cyclobutane has rotational symmetry; it is same as the original shape after 900 rotation.

(b)

Interpretation Introduction

Interpretation:

Whether the given ketone compound exhibit reflectional symmetry has to be checked.

Concept Introduction:

A molecule is said to possess a symmetry element if the molecule is unchanged in appearance after applying the symmetry operation corresponding to the symmetry element.

There are different types of symmetries such as rotational, reflectional, inversion, and improper rotation.

Reflectional symmetry is also known as line symmetry is a type of balance in which a center line called line of symmetry (plane of symmetry) divides an object in half so that one side mirrors the other.

Plane of symmetry: When structure of the compound can be cut into two equal halves along the plane. Then such plane is called as plane of symmetry.

Example for a molecule which has reflectional symmetry is,

(c)

Interpretation Introduction

Interpretation:

Whether the compound is chiral or achiral and if it is a chiral compound its enantiomer has to be drawn.

Concept Introduction:

A molecule is said to possess a symmetry element if the molecule is unchanged in appearance after applying the symmetry operation corresponding to the symmetry element.

There are different types of symmetries such as rotational, reflectional, inversion, and improper rotation.

Reflectional symmetry is also known as line symmetry is a type of balance in which a center line called line of symmetry divides an object in half so that one side mirrors the other.

A molecule has rotational symmetry only if you rotate less than one full turn; it is the same as the original shape.

Chiral center: A chiral center is defined as the tetrahedral carbon atom in an organic molecule that is connected to four non-identical groups/substituents. It is sometimes known as a stereo genic center.

Chirality: The geometric property of molecules where the structure of the molecule and its mirror image are not superimposable is known as chirality. Chiral molecules are optically active and they can rotate the plane polarized light.

Chirality is not dependent on the presence or absence of rotational symmetry. It is only dependent on the presence or absence of reflectional symmetry.

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Answer 5

Chapter 5, Problem 78CP

(a)

Interpretation Introduction

Interpretation:

Whether the given ketone compound exhibit rotational symmetry has to be checked.

Concept Introduction:

A molecule is said to possess a symmetry element if the molecule is unchanged in appearance after applying the symmetry operation corresponding to the symmetry element.

There are different types of symmetries such as rotational, reflectional, inversion, and improper rotation.

A molecule has rotational symmetry only if you rotate less than one full turn; it is the same as the original shape.

For example,

The cyclobutane has rotational symmetry; it is same as the original shape after 900 rotation.

(b)

Interpretation Introduction

Interpretation:

Whether the given ketone compound exhibit reflectional symmetry has to be checked.

Concept Introduction:

A molecule is said to possess a symmetry element if the molecule is unchanged in appearance after applying the symmetry operation corresponding to the symmetry element.

There are different types of symmetries such as rotational, reflectional, inversion, and improper rotation.

Reflectional symmetry is also known as line symmetry is a type of balance in which a center line called line of symmetry (plane of symmetry) divides an object in half so that one side mirrors the other.

Plane of symmetry: When structure of the compound can be cut into two equal halves along the plane. Then such plane is called as plane of symmetry.

Example for a molecule which has reflectional symmetry is,

(c)

Interpretation Introduction

Interpretation:

Whether the compound is chiral or achiral and if it is a chiral compound its enantiomer has to be drawn.

Concept Introduction:

A molecule is said to possess a symmetry element if the molecule is unchanged in appearance after applying the symmetry operation corresponding to the symmetry element.

There are different types of symmetries such as rotational, reflectional, inversion, and improper rotation.

Reflectional symmetry is also known as line symmetry is a type of balance in which a center line called line of symmetry divides an object in half so that one side mirrors the other.

A molecule has rotational symmetry only if you rotate less than one full turn; it is the same as the original shape.

Chiral center: A chiral center is defined as the tetrahedral carbon atom in an organic molecule that is connected to four non-identical groups/substituents. It is sometimes known as a stereo genic center.

Chirality: The geometric property of molecules where the structure of the molecule and its mirror image are not superimposable is known as chirality. Chiral molecules are optically active and they can rotate the plane polarized light.

Chirality is not dependent on the presence or absence of rotational symmetry. It is only dependent on the presence or absence of reflectional symmetry.

Answer 6

Chapter 5, Problem 78CP

(a)

Interpretation Introduction

Interpretation:

Whether the given ketone compound exhibit rotational symmetry has to be checked.

Concept Introduction:

A molecule is said to possess a symmetry element if the molecule is unchanged in appearance after applying the symmetry operation corresponding to the symmetry element.

There are different types of symmetries such as rotational, reflectional, inversion, and improper rotation.

A molecule has rotational symmetry only if you rotate less than one full turn; it is the same as the original shape.

For example,

The cyclobutane has rotational symmetry; it is same as the original shape after 900 rotation.

Answer 7

Chapter 5, Problem 78CP

(a)

Interpretation Introduction

Interpretation:

Whether the given ketone compound exhibit rotational symmetry has to be checked.

Concept Introduction:

A molecule is said to possess a symmetry element if the molecule is unchanged in appearance after applying the symmetry operation corresponding to the symmetry element.

There are different types of symmetries such as rotational, reflectional, inversion, and improper rotation.

A molecule has rotational symmetry only if you rotate less than one full turn; it is the same as the original shape.

For example,

The cyclobutane has rotational symmetry; it is same as the original shape after 900 rotation.

Answer 8

(b)

Interpretation Introduction

Interpretation:

Whether the given ketone compound exhibit reflectional symmetry has to be checked.

Concept Introduction:

A molecule is said to possess a symmetry element if the molecule is unchanged in appearance after applying the symmetry operation corresponding to the symmetry element.

There are different types of symmetries such as rotational, reflectional, inversion, and improper rotation.

Reflectional symmetry is also known as line symmetry is a type of balance in which a center line called line of symmetry (plane of symmetry) divides an object in half so that one side mirrors the other.

Plane of symmetry: When structure of the compound can be cut into two equal halves along the plane. Then such plane is called as plane of symmetry.

Example for a molecule which has reflectional symmetry is,

Answer 9

(b)

Interpretation Introduction

Interpretation:

Whether the given ketone compound exhibit reflectional symmetry has to be checked.

Concept Introduction:

A molecule is said to possess a symmetry element if the molecule is unchanged in appearance after applying the symmetry operation corresponding to the symmetry element.

There are different types of symmetries such as rotational, reflectional, inversion, and improper rotation.

Reflectional symmetry is also known as line symmetry is a type of balance in which a center line called line of symmetry (plane of symmetry) divides an object in half so that one side mirrors the other.

Plane of symmetry: When structure of the compound can be cut into two equal halves along the plane. Then such plane is called as plane of symmetry.

Example for a molecule which has reflectional symmetry is,

Answer 10

(c)

Interpretation Introduction

Interpretation:

Whether the compound is chiral or achiral and if it is a chiral compound its enantiomer has to be drawn.

Concept Introduction:

A molecule is said to possess a symmetry element if the molecule is unchanged in appearance after applying the symmetry operation corresponding to the symmetry element.

There are different types of symmetries such as rotational, reflectional, inversion, and improper rotation.

Reflectional symmetry is also known as line symmetry is a type of balance in which a center line called line of symmetry divides an object in half so that one side mirrors the other.

A molecule has rotational symmetry only if you rotate less than one full turn; it is the same as the original shape.

Chiral center: A chiral center is defined as the tetrahedral carbon atom in an organic molecule that is connected to four non-identical groups/substituents. It is sometimes known as a stereo genic center.

Chirality: The geometric property of molecules where the structure of the molecule and its mirror image are not superimposable is known as chirality. Chiral molecules are optically active and they can rotate the plane polarized light.

Chirality is not dependent on the presence or absence of rotational symmetry. It is only dependent on the presence or absence of reflectional symmetry.

Answer 11

(c)

Interpretation Introduction

Interpretation:

Whether the compound is chiral or achiral and if it is a chiral compound its enantiomer has to be drawn.

Concept Introduction:

A molecule is said to possess a symmetry element if the molecule is unchanged in appearance after applying the symmetry operation corresponding to the symmetry element.

There are different types of symmetries such as rotational, reflectional, inversion, and improper rotation.

Reflectional symmetry is also known as line symmetry is a type of balance in which a center line called line of symmetry divides an object in half so that one side mirrors the other.

A molecule has rotational symmetry only if you rotate less than one full turn; it is the same as the original shape.

Chiral center: A chiral center is defined as the tetrahedral carbon atom in an organic molecule that is connected to four non-identical groups/substituents. It is sometimes known as a stereo genic center.

Chirality: The geometric property of molecules where the structure of the molecule and its mirror image are not superimposable is known as chirality. Chiral molecules are optically active and they can rotate the plane polarized light.

Chirality is not dependent on the presence or absence of rotational symmetry. It is only dependent on the presence or absence of reflectional symmetry.

Answer 12

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Answer 13

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Answer 14

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Answer 15

Ch. 5.1 - In the following compound, identify each unit...Ch. 5.1 - Prob. 2CC Ch. 5.1 - Prob. 3CC Ch. 5.2 - Prob. 1LTS Ch. 5.2 - Prob. 4PTS Ch. 5.2 - Prob. 5ATS Ch. 5.2 - Prob. 6ATS Ch. 5.2 - Prob. 2LTS Ch. 5.2 - Prob. 7PTS Ch. 5.2 - Prob. 8ATS

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