The structural formula for 1,3-dichlorobenzene has to be drawn. Concept introduction: A benzene ring has six carbon atoms which are sp 2 hybridized and one hydrogen atom attached to each carbon atom thus total six hydrogens are present in benzene ring. Benzene is known as an aromatic compound as it obeys Huckel’s aromaticity rules. The structure of the benzene derivative when one or more hydrogen atoms are replaced by other groups, can be drawn as follows, The systematic name for the benzene derivatives is written by taking the parent name benzene and all the substituent come in the prefix.

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Answer 1

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Definition Definition Rule that estimates whether a given organic planar ring structure will show an aromatic property. A cyclic ring molecule is said to follow Hückel’s rule if the л-electrons count in a molecule is [4n+2], where n stands for a positive numerical value. It is also called the [4n+2] rule. Hückel's rule, sometimes referred to as the aromaticity rule, is one but not the only criteria to judge a molecule for aromaticity.

Chapter 23, Problem 39PS

(a)

Interpretation Introduction

Interpretation: The structural formula for 1,3-dichlorobenzene has to be drawn.

Concept introduction:

A benzene ring has six carbon atoms which are sp2 hybridized and one hydrogen atom attached to each carbon atom thus total six hydrogens are present in benzene ring. Benzene is known as an aromatic compound as it obeys Huckel’s aromaticity rules.

The structure of the benzene derivative when one or more hydrogen atoms are replaced by other groups, can be drawn as follows,

The systematic name for the benzene derivatives is written by taking the parent name benzene and all the substituent come in the prefix.

(b)

Interpretation Introduction

Interpretation: The structural formula for 1-bromo-4-methylbenzene has to be drawn.

Concept introduction: A benzene ring has six carbon atoms which are sp2 hybridized and one hydrogen atom attached to each carbon atom thus total six hydrogens are present in benzene ring. Benzene is known as an aromatic compound as it obeys Huckel’s aromaticity rules.

The structure of the benzene derivative when one or more hydrogen atoms are replaced by other groups, can be drawn as follows,

The systematic name for the benzene derivatives is written by taking the parent name benzene and all the substituent come in the prefix.

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(B) Draw a structural diagram for each of the following organic compounds: (a) 2-ethyl-4-methyl-2-pentanol (b) 1,2-ethandiol (c) 1,3-dimethylbenzene

Which compounds exhibit geometric isomerism? Draw andname the two isomers in each case:(a) 1-pentene(b) 2-pentene(c) 1-chloropropene(d) 2-chloropropene

Draw the structural formulas for the following compounds. Include all the bonds to hydrogen atoms. Be sure to answer both parts. (a) 1,4-dichloro-2-ethylbenzene: (b) 2-ethyl-1,3-dimethylbenzene:

Answer 2

Question

Definition Definition Rule that estimates whether a given organic planar ring structure will show an aromatic property. A cyclic ring molecule is said to follow Hückel’s rule if the л-electrons count in a molecule is [4n+2], where n stands for a positive numerical value. It is also called the [4n+2] rule. Hückel's rule, sometimes referred to as the aromaticity rule, is one but not the only criteria to judge a molecule for aromaticity.

Chapter 23, Problem 39PS

(a)

Interpretation Introduction

Interpretation: The structural formula for 1,3-dichlorobenzene has to be drawn.

Concept introduction:

A benzene ring has six carbon atoms which are sp2 hybridized and one hydrogen atom attached to each carbon atom thus total six hydrogens are present in benzene ring. Benzene is known as an aromatic compound as it obeys Huckel’s aromaticity rules.

The structure of the benzene derivative when one or more hydrogen atoms are replaced by other groups, can be drawn as follows,

The systematic name for the benzene derivatives is written by taking the parent name benzene and all the substituent come in the prefix.

(b)

Interpretation Introduction

Interpretation: The structural formula for 1-bromo-4-methylbenzene has to be drawn.

Concept introduction: A benzene ring has six carbon atoms which are sp2 hybridized and one hydrogen atom attached to each carbon atom thus total six hydrogens are present in benzene ring. Benzene is known as an aromatic compound as it obeys Huckel’s aromaticity rules.

The structure of the benzene derivative when one or more hydrogen atoms are replaced by other groups, can be drawn as follows,

The systematic name for the benzene derivatives is written by taking the parent name benzene and all the substituent come in the prefix.

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Answer 3

Question

Definition Definition Rule that estimates whether a given organic planar ring structure will show an aromatic property. A cyclic ring molecule is said to follow Hückel’s rule if the л-electrons count in a molecule is [4n+2], where n stands for a positive numerical value. It is also called the [4n+2] rule. Hückel's rule, sometimes referred to as the aromaticity rule, is one but not the only criteria to judge a molecule for aromaticity.

Chapter 23, Problem 39PS

(a)

Interpretation Introduction

Interpretation: The structural formula for 1,3-dichlorobenzene has to be drawn.

Concept introduction:

A benzene ring has six carbon atoms which are sp2 hybridized and one hydrogen atom attached to each carbon atom thus total six hydrogens are present in benzene ring. Benzene is known as an aromatic compound as it obeys Huckel’s aromaticity rules.

The structure of the benzene derivative when one or more hydrogen atoms are replaced by other groups, can be drawn as follows,

The systematic name for the benzene derivatives is written by taking the parent name benzene and all the substituent come in the prefix.

(b)

Interpretation Introduction

Interpretation: The structural formula for 1-bromo-4-methylbenzene has to be drawn.

Concept introduction: A benzene ring has six carbon atoms which are sp2 hybridized and one hydrogen atom attached to each carbon atom thus total six hydrogens are present in benzene ring. Benzene is known as an aromatic compound as it obeys Huckel’s aromaticity rules.

The structure of the benzene derivative when one or more hydrogen atoms are replaced by other groups, can be drawn as follows,

The systematic name for the benzene derivatives is written by taking the parent name benzene and all the substituent come in the prefix.

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Answer 4

Question

Definition Definition Rule that estimates whether a given organic planar ring structure will show an aromatic property. A cyclic ring molecule is said to follow Hückel’s rule if the л-electrons count in a molecule is [4n+2], where n stands for a positive numerical value. It is also called the [4n+2] rule. Hückel's rule, sometimes referred to as the aromaticity rule, is one but not the only criteria to judge a molecule for aromaticity.

Chapter 23, Problem 39PS

(a)

Interpretation Introduction