Chemistry - Nomenclature Question with Solution | TestHub

Question Explanation:

To find the DOU / DU ? DBE (double bond equivalent or degree of unsaturation)

Concept:

This question is based on DU / DBE = (Number of $\pi$ - bonds + Number of rings)

Solution:

For one ring $\mathrm{DBE}=1$ For one $\pi$ bond $\mathrm{DBE}=1$

Total $\pi$ bonds $=7$

Total rings $=2$

$\mathrm{DOU}/\mathrm{DBE}=7+2=9$

Final Answer: The correct answer is 9 .