O O For the formula C,H,, calculate the index of hydrogen deficiency (IHD) and select all the types of unsaturation that might be 14> present in the molecule based on the IHD. The IHD is Which types of unsaturation might be present? three double bonds or three ring closings; or two double bonds and one ring closing; or one double bond and two ring closings; or one triple bond and one double bond; or one triple bond and one ring closing one double bond or one ring closing no unsaturation; no multiple bonds or ring closings many possibilities; most likely a benzene ring

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### Understanding Hydrogen Deficiency

For the formula C<sub>7</sub>H<sub>14</sub>, calculate the index of hydrogen deficiency (IHD) and select all the types of unsaturation that might be present in the molecule based on the IHD.

#### The IHD is: 
[Input Box]

#### Which types of unsaturation might be present?
- ⃝ No unsaturation; no multiple bonds or ring closings
- ⃝ One double bond or one ring closing
- ⃝ Two double bonds, or two rings, or one triple bond
- ⃝ One double bond and one ring closing, or two double bonds and one ring closing
- ⃝ Three double bonds or three ring closings; or two double bonds and one ring closing; or one triple bond and one double bond; or one triple bond and one ring closing
- ⃝ Many possibilities; most likely a benzene ring

### Explanation:

Hydrogen Deficiency (IHD) is a concept used to identify the degree of unsaturation in organic compounds. Unsaturation can result from double bonds, triple bonds, or ring structures. Calculate the degree using:
\[ \text{IHD} = \frac{2C + 2 + N - X - H}{2} \]
where C is the number of carbons, N is the number of nitrogens, X is the number of halogens, and H is the number of hydrogens.
Transcribed Image Text:### Understanding Hydrogen Deficiency For the formula C<sub>7</sub>H<sub>14</sub>, calculate the index of hydrogen deficiency (IHD) and select all the types of unsaturation that might be present in the molecule based on the IHD. #### The IHD is: [Input Box] #### Which types of unsaturation might be present? - ⃝ No unsaturation; no multiple bonds or ring closings - ⃝ One double bond or one ring closing - ⃝ Two double bonds, or two rings, or one triple bond - ⃝ One double bond and one ring closing, or two double bonds and one ring closing - ⃝ Three double bonds or three ring closings; or two double bonds and one ring closing; or one triple bond and one double bond; or one triple bond and one ring closing - ⃝ Many possibilities; most likely a benzene ring ### Explanation: Hydrogen Deficiency (IHD) is a concept used to identify the degree of unsaturation in organic compounds. Unsaturation can result from double bonds, triple bonds, or ring structures. Calculate the degree using: \[ \text{IHD} = \frac{2C + 2 + N - X - H}{2} \] where C is the number of carbons, N is the number of nitrogens, X is the number of halogens, and H is the number of hydrogens.
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