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JEE Main202131 Aug 2021Evening ShiftChemistryGeneral Organic ChemistryActual

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

Options

  1. AI < III < IV < II
  2. BI < IV < III < II
  3. CII < IV < III < I
  4. DII < III < IV < I

Correct answer

A. I < III < IV < II

Step-by-step solution

The order Potential energy of above conformations is Fully eclipsed > Partial eclipsed > Gauche > Anti

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