Question

question 28 of 30 which type of hydrocarbon has only single carbon-carbon bonds? a. alkene b. alkane c. aromatic d. alkyne

Explanation:

To determine the type of hydrocarbon with only single carbon - carbon bonds, we analyze each option:

• Option A: Alkenes have at least one carbon - carbon double bond ($\ce{C = C}$), so they do not have only single carbon - carbon bonds.
• Option B: Alkanes are saturated hydrocarbons. Their general formula is $\ce{C_{n}H_{2n + 2}}$, and all carbon - carbon bonds in alkanes are single bonds ($\ce{C - C}$).
• Option C: Aromatic hydrocarbons (like benzene) have a delocalized ring of electrons and contain carbon - carbon bonds that are a hybrid between single and double bonds, not just single bonds.
• Option D: Alkynes have at least one carbon - carbon triple bond ($\ce{C\equiv C}$), so they do not have only single carbon - carbon bonds.

Answer:

B. Alkane