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Arrange the following conformational isomers of n-butane in order of their increasing potential energy:

Option 1 -

I < III < IV < II

Option 2 -

I < IV < III < II

Option 3 -

II < III < IV < I     

Option 4 -

II < IV < III < I

0 2 Views | Posted 3 months ago
Asked by Shiksha User

  • 1 Answer

  • V

    Answered by

    Vishal Baghel | Contributor-Level 10

    3 months ago
    Correct Option - 1


    Detailed Solution:

    Structure (I) is anti conformer.

    Structure (II) is fully eclipsed conformer.

    Structure (III) is skew or gauche conformer.

    Structure (IV) is partially eclipsed.

    ∴ order of stability

    (I) > (III) > (IV) > (II)

    Order of P.E. is (II) > (IV) > (III) > (I).

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