The two chair conformers of cis-1-ethyl-3-methylcyclohexane has to be drawn and also the more stable conformer has to be indicated. Concept introduction: Conformers: The different spatial arrangements of the atoms that result from rotation about a single bond is called conformational isomers. Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in ( cis ) and ( trans ) configurations know as geometric isomerism. Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5 0 ), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

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Answer 1

Question

Chapter 3, Problem 71P

(a)

Interpretation Introduction

Interpretation:

The two chair conformers of cis-1-ethyl-3-methylcyclohexane has to be drawn and also the more stable conformer has to be indicated.

Concept introduction:

Conformers: The different spatial arrangements of the atoms that result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5⁰), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

(b)

Interpretation Introduction

Interpretation:

The two chair conformers of trans-1-ethyl-2-isopropylcyclohexane has to be drawn.

Concept introduction:

Conformers: The different spatial arrangements of the atoms the result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5⁰), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

(c)

Interpretation Introduction

Interpretation:

The two chair conformers of trans-1-ethyl-2-methylcyclohexane has to be drawn and also the more stable conformer has to be indicated.

Concept introduction:

Conformers: The different spatial arrangements of the atoms the result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5°), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

(d)

Interpretation Introduction

Interpretation:

The two chair conformers of cis-1,2-diethylcyclohexane has to be drawn. Also mention the stable one.

Concept introduction:

Conformers: The different spatial arrangements of the atoms the result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5⁰), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

(e)

Interpretation Introduction

Interpretation:

The two chair conformers of cis -1-ethyl-3-isopropylcyclohexane has to be drawn. Also mention the stable one.

Concept introduction:

Conformers: The different spatial arrangements of the atoms the result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5⁰), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

(f)

Interpretation Introduction

Interpretation:

The two chair conformers of cis-1-ethyl-4-isopropylcyclohexane has to be drawn.

Concept introduction:

Conformers: The different spatial arrangements of the atoms the result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5⁰), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

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Answer 2

Question

Chapter 3, Problem 71P

(a)

Interpretation Introduction

Interpretation:

The two chair conformers of cis-1-ethyl-3-methylcyclohexane has to be drawn and also the more stable conformer has to be indicated.

Concept introduction:

Conformers: The different spatial arrangements of the atoms that result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5⁰), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

(b)

Interpretation Introduction

Interpretation:

The two chair conformers of trans-1-ethyl-2-isopropylcyclohexane has to be drawn.

Concept introduction:

Conformers: The different spatial arrangements of the atoms the result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5⁰), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

(c)

Interpretation Introduction

Interpretation:

The two chair conformers of trans-1-ethyl-2-methylcyclohexane has to be drawn and also the more stable conformer has to be indicated.

Concept introduction:

Conformers: The different spatial arrangements of the atoms the result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5°), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

(d)

Interpretation Introduction

Interpretation:

The two chair conformers of cis-1,2-diethylcyclohexane has to be drawn. Also mention the stable one.

Concept introduction:

Conformers: The different spatial arrangements of the atoms the result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5⁰), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

(e)

Interpretation Introduction

Interpretation:

The two chair conformers of cis -1-ethyl-3-isopropylcyclohexane has to be drawn. Also mention the stable one.

Concept introduction:

Conformers: The different spatial arrangements of the atoms the result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5⁰), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

(f)

Interpretation Introduction

Interpretation:

The two chair conformers of cis-1-ethyl-4-isopropylcyclohexane has to be drawn.

Concept introduction:

Conformers: The different spatial arrangements of the atoms the result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5⁰), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

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Answer 3

Question

Chapter 3, Problem 71P

(a)

Interpretation Introduction

Interpretation:

The two chair conformers of cis-1-ethyl-3-methylcyclohexane has to be drawn and also the more stable conformer has to be indicated.

Concept introduction:

Conformers: The different spatial arrangements of the atoms that result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5⁰), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

(b)

Interpretation Introduction

Interpretation:

The two chair conformers of trans-1-ethyl-2-isopropylcyclohexane has to be drawn.

Concept introduction:

Conformers: The different spatial arrangements of the atoms the result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5⁰), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

(c)

Interpretation Introduction

Interpretation:

The two chair conformers of trans-1-ethyl-2-methylcyclohexane has to be drawn and also the more stable conformer has to be indicated.

Concept introduction:

Conformers: The different spatial arrangements of the atoms the result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5°), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

(d)

Interpretation Introduction

Interpretation:

The two chair conformers of cis-1,2-diethylcyclohexane has to be drawn. Also mention the stable one.

Concept introduction:

Conformers: The different spatial arrangements of the atoms the result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5⁰), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

(e)

Interpretation Introduction

Interpretation:

The two chair conformers of cis -1-ethyl-3-isopropylcyclohexane has to be drawn. Also mention the stable one.

Concept introduction:

Conformers: The different spatial arrangements of the atoms the result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5⁰), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

(f)

Interpretation Introduction

Interpretation:

The two chair conformers of cis-1-ethyl-4-isopropylcyclohexane has to be drawn.

Concept introduction:

Conformers: The different spatial arrangements of the atoms the result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5⁰), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

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Answer 4

Question

Chapter 3, Problem 71P

(a)

Interpretation Introduction

Interpretation:

The two chair conformers of cis-1-ethyl-3-methylcyclohexane has to be drawn and also the more stable conformer has to be indicated.

Concept introduction:

Conformers: The different spatial arrangements of the atoms that result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5⁰), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

(b)

Interpretation Introduction

Interpretation:

The two chair conformers of trans-1-ethyl-2-isopropylcyclohexane has to be drawn.

Concept introduction:

Conformers: The different spatial arrangements of the atoms the result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5⁰), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

(c)

Interpretation Introduction

Interpretation:

The two chair conformers of trans-1-ethyl-2-methylcyclohexane has to be drawn and also the more stable conformer has to be indicated.

Concept introduction:

Conformers: The different spatial arrangements of the atoms the result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5°), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

(d)

Interpretation Introduction

Interpretation:

The two chair conformers of cis-1,2-diethylcyclohexane has to be drawn. Also mention the stable one.

Concept introduction:

Conformers: The different spatial arrangements of the atoms the result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5⁰), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

(e)

Interpretation Introduction

Interpretation:

The two chair conformers of cis -1-ethyl-3-isopropylcyclohexane has to be drawn. Also mention the stable one.

Concept introduction:

Conformers: The different spatial arrangements of the atoms the result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5⁰), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

(f)

Interpretation Introduction

Interpretation:

The two chair conformers of cis-1-ethyl-4-isopropylcyclohexane has to be drawn.

Concept introduction:

Conformers: The different spatial arrangements of the atoms the result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5⁰), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

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Answer 5

Chapter 3, Problem 71P

(a)

Interpretation Introduction

Interpretation:

The two chair conformers of cis-1-ethyl-3-methylcyclohexane has to be drawn and also the more stable conformer has to be indicated.

Concept introduction:

Conformers: The different spatial arrangements of the atoms that result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5⁰), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

(b)

Interpretation Introduction

Interpretation:

The two chair conformers of trans-1-ethyl-2-isopropylcyclohexane has to be drawn.

Concept introduction:

Conformers: The different spatial arrangements of the atoms the result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5⁰), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

(c)

Interpretation Introduction

Interpretation:

The two chair conformers of trans-1-ethyl-2-methylcyclohexane has to be drawn and also the more stable conformer has to be indicated.

Concept introduction:

Conformers: The different spatial arrangements of the atoms the result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5°), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

(d)

Interpretation Introduction

Interpretation:

The two chair conformers of cis-1,2-diethylcyclohexane has to be drawn. Also mention the stable one.

Concept introduction:

Conformers: The different spatial arrangements of the atoms the result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5⁰), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

(e)

Interpretation Introduction

Interpretation:

The two chair conformers of cis -1-ethyl-3-isopropylcyclohexane has to be drawn. Also mention the stable one.

Concept introduction:

Conformers: The different spatial arrangements of the atoms the result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5⁰), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

(f)

Interpretation Introduction

Interpretation:

The two chair conformers of cis-1-ethyl-4-isopropylcyclohexane has to be drawn.

Concept introduction:

Conformers: The different spatial arrangements of the atoms the result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5⁰), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

Answer 6

Chapter 3, Problem 71P

(a)

Interpretation Introduction

Interpretation:

The two chair conformers of cis-1-ethyl-3-methylcyclohexane has to be drawn and also the more stable conformer has to be indicated.

Concept introduction:

Conformers: The different spatial arrangements of the atoms that result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5⁰), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

Answer 7

Chapter 3, Problem 71P

(a)

Interpretation Introduction

Interpretation:

The two chair conformers of cis-1-ethyl-3-methylcyclohexane has to be drawn and also the more stable conformer has to be indicated.

Concept introduction:

Conformers: The different spatial arrangements of the atoms that result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5⁰), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

Answer 8

(b)

Interpretation Introduction

Interpretation:

The two chair conformers of trans-1-ethyl-2-isopropylcyclohexane has to be drawn.

Concept introduction:

Conformers: The different spatial arrangements of the atoms the result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5⁰), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

Answer 9

(b)

Interpretation Introduction

Interpretation:

The two chair conformers of trans-1-ethyl-2-isopropylcyclohexane has to be drawn.

Concept introduction:

Conformers: The different spatial arrangements of the atoms the result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5⁰), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

Answer 10

(c)

Interpretation Introduction

Interpretation:

The two chair conformers of trans-1-ethyl-2-methylcyclohexane has to be drawn and also the more stable conformer has to be indicated.

Concept introduction:

Conformers: The different spatial arrangements of the atoms the result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5°), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

Answer 11

(c)

Interpretation Introduction

Interpretation:

The two chair conformers of trans-1-ethyl-2-methylcyclohexane has to be drawn and also the more stable conformer has to be indicated.

Concept introduction:

Conformers: The different spatial arrangements of the atoms the result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5°), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

Answer 12

(d)

Interpretation Introduction

Interpretation:

The two chair conformers of cis-1,2-diethylcyclohexane has to be drawn. Also mention the stable one.

Concept introduction:

Conformers: The different spatial arrangements of the atoms the result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5⁰), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

Answer 13

(d)

Interpretation Introduction

Interpretation:

The two chair conformers of cis-1,2-diethylcyclohexane has to be drawn. Also mention the stable one.

Concept introduction:

Conformers: The different spatial arrangements of the atoms the result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5⁰), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

Answer 14

(e)

Interpretation Introduction

Interpretation:

The two chair conformers of cis -1-ethyl-3-isopropylcyclohexane has to be drawn. Also mention the stable one.

Concept introduction:

Conformers: The different spatial arrangements of the atoms the result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5⁰), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

Answer 15

(e)

Interpretation Introduction

Interpretation:

The two chair conformers of cis -1-ethyl-3-isopropylcyclohexane has to be drawn. Also mention the stable one.

Concept introduction:

Conformers: The different spatial arrangements of the atoms the result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5⁰), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

Answer 16

(f)

Interpretation Introduction

Interpretation:

The two chair conformers of cis-1-ethyl-4-isopropylcyclohexane has to be drawn.

Concept introduction:

Conformers: The different spatial arrangements of the atoms the result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5⁰), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

Answer 17

(f)

Interpretation Introduction

Interpretation:

The two chair conformers of cis-1-ethyl-4-isopropylcyclohexane has to be drawn.

Concept introduction:

Conformers: The different spatial arrangements of the atoms the result from rotation about a single bond is called conformational isomers.

Stereoisomerism (or) geometric isomerism: It is known as cis-trans isomerism or E-Z isomerism is a form of stereoisomerism the each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in (cis) and (trans) configurations know as geometric isomerism.

Relative stability of cyclohexane: The most stable conformation of cyclohexane is the chair shown to the right, the respective carbon (-C-C-) bonds are it close to (109.5⁰), it is almost free of angle strain, it is also a fully staggered conformation and so is free of torsional strain. So the chair conformation is the most stable conformation.

Answer 18

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Answer 19

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Answer 20

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Answer 21

Ch. 3.1 - Name each of the following:Ch. 3.1 - Draw the structure of a compound with molecular...Ch. 3.1 - Draw the structures and name the four...Ch. 3.1 - Prob. 6P Ch. 3.1 - Draw the structure for each of the following: a....Ch. 3.1 - Name the following compounds: a. CH3OCH2CH3 b....Ch. 3.2 - Prob. 11P Ch. 3.2 - Prob. 12P Ch. 3.3 - Prob. 13P Ch. 3.3 - Prob. 14P

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