Question

multiple choice 2 points
how many elements of unsaturation are implied by the molecular formula c₆h₁₂?
2
3
1
4
0
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Explanation:

Step1: Recall formula for elements of unsaturation

The formula is $\frac{2C + 2+N - H - X}{2}$, where $C$ is number of carbon atoms, $N$ is number of nitrogen atoms, $H$ is number of hydrogen atoms, $X$ is number of halogen atoms.

Step2: Substitute values

Here, $C = 6$, $N = 0$, $H = 12$, $X = 0$. So, $\frac{2\times6 + 2+0 - 12 - 0}{2}=\frac{12 + 2-12}{2}=\frac{2}{2}=1$.

Answer:

C. 1