Q1 / 180 · KCET 2023 · Chemistry

A pair of compounds having the same boiling points are

  • A
    cis but-2-ene and trans but-2-ene
  • B
    $n$-hexane and neo-hexane
  • C
    benzene and naphthalene
  • Correct answer
    D
    $(+)$ butan-2-ol and (-) butan-2-ol

Solution

$d$-and $l$-isomers (enantiomers) have identical chemical and physical properties. They are indistinguishable from each other except for the direction of rotation of the plane polarised light. Thus ( + ) butan-2-ol and (-) butan-2-ol will have same boiling points.

Hence, the correct answer is option: 'D'.

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