MDCAT Chemistry MCQ #3968

In terms of bond length and strength, the C-H bond in ethyne is shorter and stronger than in ethane. This occurs because ethyne has:

MDCAT Chemistry MCQ #3968

  1. Question 1

    Q1. In terms of bond length and strength, the C-H bond in ethyne is shorter and stronger than in ethane. This occurs because ethyne has:

    • A) Greater p-character
    • B) sp3 hybridization
    • C) Greater s-character in its sp hybrid orbitals
    • D) Less electronegative carbon

    Answer: Greater s-character in its sp hybrid orbitals

    Explanation: C-H bond length decreases as s-character increases from sp3 to sp. sp3 is tempting but has the longest C-H bond.