MDCAT Chemistry MCQ #3963

During a discussion on bond strengths, it is noted that the C-C bond in ethane is harder to break than one of the bonds in ethene. This is because:

MDCAT Chemistry MCQ #3963

  1. Question 1

    Q1. During a discussion on bond strengths, it is noted that the C-C bond in ethane is harder to break than one of the bonds in ethene. This is because:

    • A) Sigma bonds are stronger than pi bonds
    • B) Pi bonds are stronger than sigma bonds
    • C) Both bonds have equal strength
    • D) Ethene has no sigma bonds

    Answer: Sigma bonds are stronger than pi bonds

    Explanation: Sigma bonds are stronger than pi bonds due to head-on overlap. Pi bonds are tempting but involve less effective parallel overlap.