MDCAT Chemistry MCQ #3934

In a molecule of 1,3-butadiene (CH2=CH-CH=CH2), what is the total number of sigma bonds and pi bonds present respectively?

MDCAT Chemistry MCQ #3934

  1. Question 1

    Q1. In a molecule of 1,3-butadiene (CH2=CH-CH=CH2), what is the total number of sigma bonds and pi bonds present respectively?

    • A) 9 sigma, 2 pi
    • B) 7 sigma, 2 pi
    • C) 11 sigma, 2 pi
    • D) 9 sigma, 1 pi

    Answer: 9 sigma, 2 pi

    Explanation: Includes six C-H and three C-C sigma bonds. 7 sigma is wrong because it forgets C-H bonds.