Question

choose the correct molecular formulas for the given bond - line formulas.
a. c₆h₁₀ c₁₀h₁₂n
b. c₆h₁₀ c₁₀h₁₅n
c. c₆h₁₂ c₁₀h₁₂n
d. c₆h₁₂ c₁₀h₁₅n

Explanation:

Step1: Analyze first bond - line formula

The first structure is a cyclohexene. Each vertex represents a carbon atom. There are 6 carbon atoms ($C_6$). For a cyclohexene, the number of hydrogen atoms is 10 ($H_{10}$) as it has one double - bond reducing the number of hydrogens by 2 compared to cyclohexane. So the formula is $C_6H_{10}$.

Step2: Analyze second bond - line formula

The second structure has a benzene ring (6 carbon atoms), plus 4 more carbon atoms in the side - chain, so a total of 10 carbon atoms ($C_{10}$). Counting the hydrogen atoms, there are 15 hydrogen atoms ($H_{15}$) and 1 nitrogen atom ($N$). So the formula is $C_{10}H_{15}N$.

Answer:

B. $C_6H_{10}$, $C_{10}H_{15}N$