The reason for general rule for a group of hydrocarbon isomers according to which as the amount of branching increases, the boiling point decreases needs to be explained. Concept introduction: Hydrocarbons are formed by hydrogen and carbon. Hydrocarbons are classified as saturated hydrocarbons and unsaturated hydrocarbons. The four types of hydrocarbons include alkanes , alkenes , alkynes and aromatic.

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Answer 1

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Definition Definition Molecules that have multiple bonds between their carbon atoms. Alkenes are hydrocarbons with a double bond between two adjacent carbon atoms (R 2 C=CR 2 ), whereas alkynes are hydrocarbons with a triple bond between two adjacent carbon atoms R-C=C-R . These two groups are known as unsaturated hydrocarbons. They have fewer hydrogen atoms when compared with alkanes with same number of carbon atoms. The general molecular formula for an unsaturated hydrocarbon can be represented as C n H 2n +2 .

Chapter 21, Problem 7E

Interpretation Introduction

Interpretation: The reason for general rule for a group of hydrocarbon isomers according to which as the amount of branching increases, the boiling point decreases needs to be explained.

Concept introduction: Hydrocarbons are formed by hydrogen and carbon. Hydrocarbons are classified as saturated hydrocarbons and unsaturated hydrocarbons. The four types of hydrocarbons include alkanes, alkenes, alkynes and aromatic.

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Why do alkanes, alkenes, and alkynes have a relatively low boiling point? O They have no large intermolecular forces holding them together. O They have no diple moments or polarity. O They have a lot of electron density in a very small amout of space.

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Branching of the hydrocarbon chain lowers the boiling points of the lower homologous series, such as the hydrocarbons and alcohols. Therefore, an assumption can be made that branching lowers the forces attraction in these molecules.

Answer 2

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Definition Definition Molecules that have multiple bonds between their carbon atoms. Alkenes are hydrocarbons with a double bond between two adjacent carbon atoms (R 2 C=CR 2 ), whereas alkynes are hydrocarbons with a triple bond between two adjacent carbon atoms R-C=C-R . These two groups are known as unsaturated hydrocarbons. They have fewer hydrogen atoms when compared with alkanes with same number of carbon atoms. The general molecular formula for an unsaturated hydrocarbon can be represented as C n H 2n +2 .

Chapter 21, Problem 7E

Interpretation Introduction

Interpretation: The reason for general rule for a group of hydrocarbon isomers according to which as the amount of branching increases, the boiling point decreases needs to be explained.

Concept introduction: Hydrocarbons are formed by hydrogen and carbon. Hydrocarbons are classified as saturated hydrocarbons and unsaturated hydrocarbons. The four types of hydrocarbons include alkanes, alkenes, alkynes and aromatic.

Expert Solution & Answer

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Check out a sample textbook solution

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Answer 3

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Definition Definition Molecules that have multiple bonds between their carbon atoms. Alkenes are hydrocarbons with a double bond between two adjacent carbon atoms (R 2 C=CR 2 ), whereas alkynes are hydrocarbons with a triple bond between two adjacent carbon atoms R-C=C-R . These two groups are known as unsaturated hydrocarbons. They have fewer hydrogen atoms when compared with alkanes with same number of carbon atoms. The general molecular formula for an unsaturated hydrocarbon can be represented as C n H 2n +2 .

Chapter 21, Problem 7E

Interpretation Introduction

Interpretation: The reason for general rule for a group of hydrocarbon isomers according to which as the amount of branching increases, the boiling point decreases needs to be explained.

Concept introduction: Hydrocarbons are formed by hydrogen and carbon. Hydrocarbons are classified as saturated hydrocarbons and unsaturated hydrocarbons. The four types of hydrocarbons include alkanes, alkenes, alkynes and aromatic.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 4

Question

Definition Definition Molecules that have multiple bonds between their carbon atoms. Alkenes are hydrocarbons with a double bond between two adjacent carbon atoms (R 2 C=CR 2 ), whereas alkynes are hydrocarbons with a triple bond between two adjacent carbon atoms R-C=C-R . These two groups are known as unsaturated hydrocarbons. They have fewer hydrogen atoms when compared with alkanes with same number of carbon atoms. The general molecular formula for an unsaturated hydrocarbon can be represented as C n H 2n +2 .

Chapter 21, Problem 7E

Interpretation Introduction