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Physical Properties

Which stateme...

Question

Which statements is/are correct about the conformer of cis and trans $1, 1, 3, 5 -$ tetramethyl cyclohexane?

A

Cis isomer is more stable than trans isomer.

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B

Trans isomer is more stable than cis isomer.

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C

There are two

1, 3 - M e / H

diaxial interactions in cis isomer.

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D

There are two

1, 3 - M e / H

and

1, 3 - M e / M e

diaxial interactions in trans isomer.

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Solution

The correct options are
A Cis isomer is more stable than trans isomer.
C There are two $1, 3 - M e / H$ diaxial interactions in cis isomer.
D There are two $1, 3 - M e / H$ and $1, 3 - M e / M e$ diaxial interactions in trans isomer.
The statements $A, C$ and $D$ are correct about the conformer of cis and trans $1, 1, 3, 5 -$ tetramethyl cyclohexane.
cis isomer is more stable than trans isomer.
There are two $1, 3 - M e / H$ diaxial interactions in cis isomer.
There are two $1, 3 - M e / H$ and $1, 3 - M e / M e$ diaxial interactions in trans isomer.

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Similar questions

Q. Which of the following compounds have a stable trans isomer than its cis form?

Q. First, you name both the compounds. Yes, both of them have the same name. Yet, are they really the same structure, or they are somehow different? Careful inspection should convince you that they are indeed different. Now, how their physical and chemical properties differ? Generally,
i) Cis-isomer has more dipole moment than trans-isomer.
ii) Cis is less stable than trans.
iii) The boiling points of cis isomers are more than those of trans isomers (remember boiling points are directly related to polarity which is determined by dipole moment).
iv) Chemical reactivities of cis and trans also differ from each other.
Which of the following statements best explain(s) the relationship between two isomers of

C H_{3} - C H = C H - C H_{3}

?

Q. First, you name both the compounds. Yes, both of them have the same name. Yet, are they really the same structure, or they are somehow different? Careful inspection should convince you that they are indeed different. Now, how their physical and chemical properties differ? Generally,
i) Cis-isomer has more dipole moment than trans-isomer.
ii) Cis is less stable than trans.
iii) The boiling points of cis isomers are more than those of trans isomers (remember boiling points are directly related to polarity which is determined by dipole moment).
iv) Chemical reactivities of cis and trans also differ from each other.
The number of diastereomeric pairs and enantiomeric pairs respectively, in the set of stereoisomers of the compound

C H C l = C H - C H (C H_{3}) C_{2} H_{5}

Q. First, you name both the compounds. Yes, both of them have the same name. Yet, are they really the same structure, or they are somehow different? Careful inspection should convince you that they are indeed different. Now, how their physical and chemical properties differ? Generally,
i) Cis-isomer has more dipole moment than trans-isomer.
ii) Cis is less stable than trans.
iii) The boiling points of cis isomers are more than those of trans isomers (remember boiling points are directly related to polarity which is determined by dipole moment).
iv) Chemical reactivities of cis and trans also differ from each other.

Arrange the following compounds in the increasing order of their boiling points.

C H_{3} - C H = C H - C H_{3} (c i s)

C H_{3} - C H = C H - C H_{3} (t r a n s)

C H_{3} - C H = C H C l (c i s)

C H_{3} - C H = C H C l (t r a n s)

Q. Why boiling point of cis isomer is greater than trans isomer?

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