Problem: How many unsaturations are present in the following compound?A. noneB. 2C. 3D. 5E. 6

FREE Expert Solution
FREE Expert Solution

We’re being asked to determine the degrees of unsaturation for the given structure:



Recall that the degrees of unsaturation or index of hydrogen deficiency (IHD) tell us how many hydrogens are missing in a structure.


In a given structure, the IHD is:

Rings: +1

• Double bonds: +1

• Triple bonds: +2


For a given structure, we simply need to determine the number of rings, double and triple bonds to determine the IHD.


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Problem Details

How many unsaturations are present in the following compound?



A. none

B. 2

C. 3

D. 5

E. 6

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Degrees of Unsaturation concept. You can view video lessons to learn Degrees of Unsaturation. Or if you need more Degrees of Unsaturation practice, you can also practice Degrees of Unsaturation practice problems.

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