Degrees of Unsaturation
For each of the compounds on the left, determine the total number of degrees of unsaturation (unsaturation number).Click the mouse on the molecule to view the answer.
2 degrees of unsaturation
The molecular formula for the molecule is C4H6 which is 4 hydrogens "short", giving 2 degrees of unsaturation (one for each ring).
5 degrees of unsaturation
The molecular formula for the molecule is C8H8 which is 10 hydrogens "short", giving 5 degrees of unsaturation (one for each ring).
6 degrees of unsaturation
The molecular formula for the molecule is C25H40O. When you have an oxygen, you simply ignore it, making the "working analysis" C25H40, which is 12 hydrogens "short", giving 6 degrees of unsaturation (one for each ring, one for the double bond and one for the carbonyl).