Place the compounds in order from highest index of hydrogen deficiency (IHD) to lowest IHD.

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Place the compounds in order from highest index of hydrogen deficiency (IHD) to lowest IHD.

The image presents four chemical structures, each depicting a different organic compound featuring functional groups involving oxygen:

1. **Structure 1**: 
   - Features a benzene ring (hexagonal ring) attached to a hydroxyl group (–OH) on the side chain. This represents a phenol derivative where the hydroxyl group is directly bonded to a carbon atom.
   
2. **Structure 2**:
   - Shows a linear arrangement with a carbon chain connected to a carbonyl group (C=O). It's a typical representation of a ketone or aldehyde, with the carbonyl carbon likely bonded to two other carbon atoms.

3. **Structure 3**:
   - Contains a cyclohexane ring with an epoxide (cyclic ether) where an oxygen atom forms a three-membered ring with two adjacent carbon atoms. This is indicative of an epoxide compound, often used in epoxy resins.

4. **Structure 4**:
   - Depicts a benzene ring attached to an aldehyde group, characterized by the carbonyl group (C=O) bonded to a hydrogen atom.

Each compound illustrates a unique aspect of organic chemistry, highlighting the reactivity and characteristics imparted by different oxygen-containing functional groups.
Transcribed Image Text:The image presents four chemical structures, each depicting a different organic compound featuring functional groups involving oxygen: 1. **Structure 1**: - Features a benzene ring (hexagonal ring) attached to a hydroxyl group (–OH) on the side chain. This represents a phenol derivative where the hydroxyl group is directly bonded to a carbon atom. 2. **Structure 2**: - Shows a linear arrangement with a carbon chain connected to a carbonyl group (C=O). It's a typical representation of a ketone or aldehyde, with the carbonyl carbon likely bonded to two other carbon atoms. 3. **Structure 3**: - Contains a cyclohexane ring with an epoxide (cyclic ether) where an oxygen atom forms a three-membered ring with two adjacent carbon atoms. This is indicative of an epoxide compound, often used in epoxy resins. 4. **Structure 4**: - Depicts a benzene ring attached to an aldehyde group, characterized by the carbonyl group (C=O) bonded to a hydrogen atom. Each compound illustrates a unique aspect of organic chemistry, highlighting the reactivity and characteristics imparted by different oxygen-containing functional groups.
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