The number of aldehydes and ketones that exist with the molecular formula CH 2 O has to be given. Concept Introduction: Isomers are the compounds that have same molecular formula but different structural formula. The main difference lies in the way the atoms are arranged in the structure. Isomers have different chemical and physical properties even when they have same molecular formula. This is known as Isomerism. If there is difference only in the connectivity of the atoms in the molecule, then it is known as constitutional isomerism. The isomers are known as constitutional isomers. They will have same molecular formula and same functional group, but they differ in the connectivity between the atoms in the molecule. Aldehydes and ketones have constitutional isomers. Functional group isomerism exists between aldehyde and ketones. Aldehydes and ketones that have same degree of saturation and same number of carbon atoms are functional group isomers. In aldehyde, skeletal isomerism is possible where the group attached to the carbonyl carbon atom connectivity is changed. In ketones positional isomerism is possible where the carbonyl group is moved within the carbon chain.

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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 aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 15, Problem 15.51EP

(a)

Interpretation Introduction

Interpretation:

The number of aldehydes and ketones that exist with the molecular formula CH2O has to be given.

Concept Introduction:

Isomers are the compounds that have same molecular formula but different structural formula. The main difference lies in the way the atoms are arranged in the structure. Isomers have different chemical and physical properties even when they have same molecular formula. This is known as Isomerism.

If there is difference only in the connectivity of the atoms in the molecule, then it is known as constitutional isomerism. The isomers are known as constitutional isomers. They will have same molecular formula and same functional group, but they differ in the connectivity between the atoms in the molecule.

Aldehydes and ketones have constitutional isomers. Functional group isomerism exists between aldehyde and ketones. Aldehydes and ketones that have same degree of saturation and same number of carbon atoms are functional group isomers. In aldehyde, skeletal isomerism is possible where the group attached to the carbonyl carbon atom connectivity is changed. In ketones positional isomerism is possible where the carbonyl group is moved within the carbon chain.

(b)

Interpretation Introduction

Interpretation:

The number of aldehydes and ketones that exist with the molecular formula C3H6O has to be given.

Concept Introduction:

Isomers are the compounds that have same molecular formula but different structural formula. The main difference lies in the way the atoms are arranged in the structure. Isomers have different chemical and physical properties even when they have same molecular formula. This is known as Isomerism.

If there is difference only in the connectivity of the atoms in the molecule, then it is known as constitutional isomerism. The isomers are known as constitutional isomers. They will have same molecular formula and same functional group, but they differ in the connectivity between the atoms in the molecule.

Aldehydes and ketones have constitutional isomers. Functional group isomerism exists between aldehyde and ketones. Aldehydes and ketones that have same degree of saturation and same number of carbon atoms are functional group isomers. In aldehyde, skeletal isomerism is possible where the group attached to the carbonyl carbon atom connectivity is changed. In ketones positional isomerism is possible where the carbonyl group is moved within the carbon chain.

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Molecules of the form AH2 can exist in two potential geometries: linear or bent. Construct molecular orbital diagrams for linear and bent CH2. Identify the relevant point group, include all of the appropriate symmetry labels and pictures, and fill in the electrons. Which geometry would you predict to be more stable, and why? (Please draw out the diagram and explain)

Answer 2

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Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 15, Problem 15.51EP

(a)

Interpretation Introduction

Interpretation:

The number of aldehydes and ketones that exist with the molecular formula CH2O has to be given.

Concept Introduction:

Isomers are the compounds that have same molecular formula but different structural formula. The main difference lies in the way the atoms are arranged in the structure. Isomers have different chemical and physical properties even when they have same molecular formula. This is known as Isomerism.

If there is difference only in the connectivity of the atoms in the molecule, then it is known as constitutional isomerism. The isomers are known as constitutional isomers. They will have same molecular formula and same functional group, but they differ in the connectivity between the atoms in the molecule.

Aldehydes and ketones have constitutional isomers. Functional group isomerism exists between aldehyde and ketones. Aldehydes and ketones that have same degree of saturation and same number of carbon atoms are functional group isomers. In aldehyde, skeletal isomerism is possible where the group attached to the carbonyl carbon atom connectivity is changed. In ketones positional isomerism is possible where the carbonyl group is moved within the carbon chain.

(b)

Interpretation Introduction

Interpretation:

The number of aldehydes and ketones that exist with the molecular formula C3H6O has to be given.

Concept Introduction:

Isomers are the compounds that have same molecular formula but different structural formula. The main difference lies in the way the atoms are arranged in the structure. Isomers have different chemical and physical properties even when they have same molecular formula. This is known as Isomerism.

If there is difference only in the connectivity of the atoms in the molecule, then it is known as constitutional isomerism. The isomers are known as constitutional isomers. They will have same molecular formula and same functional group, but they differ in the connectivity between the atoms in the molecule.

Aldehydes and ketones have constitutional isomers. Functional group isomerism exists between aldehyde and ketones. Aldehydes and ketones that have same degree of saturation and same number of carbon atoms are functional group isomers. In aldehyde, skeletal isomerism is possible where the group attached to the carbonyl carbon atom connectivity is changed. In ketones positional isomerism is possible where the carbonyl group is moved within the carbon chain.

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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 aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 15, Problem 15.51EP

(a)

Interpretation Introduction

Interpretation:

The number of aldehydes and ketones that exist with the molecular formula CH2O has to be given.

Concept Introduction:

Isomers are the compounds that have same molecular formula but different structural formula. The main difference lies in the way the atoms are arranged in the structure. Isomers have different chemical and physical properties even when they have same molecular formula. This is known as Isomerism.

If there is difference only in the connectivity of the atoms in the molecule, then it is known as constitutional isomerism. The isomers are known as constitutional isomers. They will have same molecular formula and same functional group, but they differ in the connectivity between the atoms in the molecule.

Aldehydes and ketones have constitutional isomers. Functional group isomerism exists between aldehyde and ketones. Aldehydes and ketones that have same degree of saturation and same number of carbon atoms are functional group isomers. In aldehyde, skeletal isomerism is possible where the group attached to the carbonyl carbon atom connectivity is changed. In ketones positional isomerism is possible where the carbonyl group is moved within the carbon chain.

(b)

Interpretation Introduction

Interpretation:

The number of aldehydes and ketones that exist with the molecular formula C3H6O has to be given.

Concept Introduction:

Isomers are the compounds that have same molecular formula but different structural formula. The main difference lies in the way the atoms are arranged in the structure. Isomers have different chemical and physical properties even when they have same molecular formula. This is known as Isomerism.

If there is difference only in the connectivity of the atoms in the molecule, then it is known as constitutional isomerism. The isomers are known as constitutional isomers. They will have same molecular formula and same functional group, but they differ in the connectivity between the atoms in the molecule.

Aldehydes and ketones have constitutional isomers. Functional group isomerism exists between aldehyde and ketones. Aldehydes and ketones that have same degree of saturation and same number of carbon atoms are functional group isomers. In aldehyde, skeletal isomerism is possible where the group attached to the carbonyl carbon atom connectivity is changed. In ketones positional isomerism is possible where the carbonyl group is moved within the carbon chain.

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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 aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 15, Problem 15.51EP

(a)

Interpretation Introduction