Question

question 12 of 30
what types of bonds and atoms are in the molecule shown below?

h₃c ch₂−ch₃
\\ /
c=c
/ \\
h h

a. double bonds, triple bonds, carbon atoms, and hydrogen atoms
b. double bonds, triple bonds, carbon atoms, and helium atoms
c. single bonds, double bonds, carbon atoms, and helium atoms
d. single bonds, double bonds, carbon atoms, and hydrogen atoms

Explanation:

1. Analyze the molecule structure: The molecule has carbon (C) and hydrogen (H) atoms.
2. Analyze bonds: The \( \text{C}=\text{C} \) is a double bond, and the other bonds (e.g., \( \text{C}-\text{H} \), \( \text{C}-\text{C} \) in \( \text{CH}_3 \), \( \text{CH}_2 \)) are single bonds.
3. Eliminate incorrect options:

• Option A: No triple bonds, so eliminate.
• Option B: No helium (He) atoms (molecule has H, not He) and no triple bonds, eliminate.
• Option C: No helium atoms, eliminate.
• Option D: Has single bonds (e.g., \( \text{C}-\text{H} \), \( \text{C}-\text{C} \)), double bond (\( \text{C}=\text{C} \)), carbon, and hydrogen atoms. This matches.

Answer:

D. Single bonds, double bonds, carbon atoms, and hydrogen atoms