Question

Total number of degree of unsaturation in compound D is:

Answer 1

Degree of unsaturation (DOU) $=\frac{2C+2+N-X-H}{2}$

where $C=$ Number of carbon atoms
$N=$ Number of nitrogen atoms
$X=$ Number of halogen atoms
$H=$ Number of hydrogen atoms

$\therefore$ Degree of unsaturation $=\frac{22+2+0-0-16}{2}=4$