Chemistry - Nomenclature Question with Solution | TestHub

Question Explanation: Match four organic compounds with their corresponding Degree of Unsaturation (DOU) . Concept: This is based on Degree of Unsaturation (DOU) or Double Bond Equivalent (DBE). Solution: The Degree of Unsaturation (DOU) is calculated as:

$\mathrm{DOU}=$ (Number of Rings) + (Number of pi bonds). $\mathrm{A}\to 1$ ring $+3\pi$ bonds $(\mathrm{DOU}=4)$ $\mathrm{B}\to 1$ ring $+4\pi$ bonds $(\mathrm{DOU}=5)\mathrm{C}\to 4$ rings $+3\pi$ bonds $(\mathrm{DOU}=7)\mathrm{D}\to 2$ rings $(\mathrm{DOU}=2)$ Correct Match: A - Q; B - R; C - S; D - P. Final Answer: Option (c)