Final answer:
There are 4 degrees of unsaturation in C8H9ClO.
Step-by-step explanation:
The number of degrees of unsaturation can be found using the formula: degrees of unsaturation = (n + 1) - (h/2) - (x/2), where n is the number of carbon atoms, h is the number of hydrogen atoms, and x is the number of halogen atoms (in this case, chlorine). In C8H9ClO, there are 8 carbon atoms, 9 hydrogen atoms, and 1 chlorine atom.
So, substituting the values into the formula: degrees of unsaturation = (8 + 1) - (9/2) - (1/2) = 4.
Therefore, there are 4 degrees of unsaturation in C8H9ClO.