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Cyclohexane exist as two chair conformat...

Cyclohexane exist as two chair conformations in rapid equilibrium at room temperature.
Each carbon atom on a cyclohexane ring has one axial and one equatorial bydrogen. Rind-flipping converts axial H's to equatorial H's and vice-versa`

In substituted cyclohexane, groups larger than hydrogen ar more stable in the equatorial position.
The cis isomers has two groups on the same side of the ring, eithere both up or both down.
The trans isomer has two groups on opposite side of the ring one up and one down.
Find out most stable substituted cyclohexane among the following:

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
C
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Cyclohexane mainly exists in boat conformation

Conformations OF Cyclohexane

Knowledge Check

  • Cyclohexane exist as two chair conformations in rapid equilibrium at room temperature. Each carbon atom on a cyclohexane ring has one axial and one equatorial bydrogen. Rind-flipping converts axial H's to equatorial H's and vice-versa In substituted cyclohexane, groups larger than hydrogen ar more stable in the equatorial position. The cis isomers has two groups on the same side of the ring, eithere both up or both down. The trans isomer has two groups on opposite side of the ring one up and one down. Find out most stble conformer of cis-3-fluorocyclojexanol:

    A
    B
    C
    D
  • Cyclohexane exist as two chair conformations in rapid equilibrium at room temperature. Each carbon atom on a cyclohexane ring has one axial and one equatorial bydrogen. Rind-flipping converts axial H's to equatorial H's and vice-versa In substituted cyclohexane, groups larger than hydrogen ar more stable in the equatorial position. The cis isomers has two groups on the same side of the ring, eithere both up or both down. The trans isomer has two groups on opposite side of the ring one up and one down. Which of the following is most stable conformer of 1,2-dichlorocyclohexane?

    A
    B
    C
    D
    All have equal stability
  • Most stable form of cyclohexane is

    A
    Boat
    B
    Chair
    C
    Skew
    D
    eclipsed
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    Number of conformations of cyclohexane is

    The least energetic conformation of cyclohexane is:

    The most stable conformation of cyclohexane is :

    Chair form of cyclohexane is more stable than boat form because :

    Assertion: Trans isomers are more stable than cis isomers Reason: The cis isomer is the one in which two similar group are on the same side of double bond.