Question 26 of 48 Name the compound below accordin

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### Question 26 of 48

#### Name the compound below according to IUPAC rules.

**Compound Structure:**

A structural diagram is provided depicting the following organic molecules:

- A chain of carbon atoms with the following structure:
    - CH₃-CH₂-CH₂-CH₂-CH₂-CH₂-CH(CH₃)-CH₃

**Answer Options:**

A) 5-methylnonane  
B) Isodecane  
C) 2,2-dibutylethane  
D) 1,4,7-trimethylheptane  
E) Decane

In this question, you need to use the IUPAC (International Union of Pure and Applied Chemistry) nomenclature rules to identify the correct name for the given organic compound.

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### Answer Explanation:

To name the compound according to IUPAC rules:

1. **Identify the Longest Carbon Chain**: Determine the longest continuous chain of carbon atoms in the molecule. This chain will be the parent hydrocarbon.
2. **Number the Carbon Atoms**: Number the carbon atoms in the longest chain such that the substituents (side chains or branches) get the lowest possible numbers.
3. **Identify and Name the Substituents**: Identify the groups attached to the main carbon chain and name them.
4. **Combine the Names**: Combine the names of the parent hydrocarbon and the substituents and their positions to form the full name of the compound.

In the given structure:
- The longest carbon chain has 8 carbon atoms.
- The numbering from the left gives the substituent the lowest possible number.
- There is a single methyl group attached to the fifth carbon atom of the chain.

Therefore, the correct answer is **A) 5-methylnonane**.

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This content can be used to help students or individuals studying organic chemistry practice the application of the IUPAC rules for naming organic compounds.
Transcribed Image Text:--- ### Question 26 of 48 #### Name the compound below according to IUPAC rules. **Compound Structure:** A structural diagram is provided depicting the following organic molecules: - A chain of carbon atoms with the following structure: - CH₃-CH₂-CH₂-CH₂-CH₂-CH₂-CH(CH₃)-CH₃ **Answer Options:** A) 5-methylnonane B) Isodecane C) 2,2-dibutylethane D) 1,4,7-trimethylheptane E) Decane In this question, you need to use the IUPAC (International Union of Pure and Applied Chemistry) nomenclature rules to identify the correct name for the given organic compound. --- ### Answer Explanation: To name the compound according to IUPAC rules: 1. **Identify the Longest Carbon Chain**: Determine the longest continuous chain of carbon atoms in the molecule. This chain will be the parent hydrocarbon. 2. **Number the Carbon Atoms**: Number the carbon atoms in the longest chain such that the substituents (side chains or branches) get the lowest possible numbers. 3. **Identify and Name the Substituents**: Identify the groups attached to the main carbon chain and name them. 4. **Combine the Names**: Combine the names of the parent hydrocarbon and the substituents and their positions to form the full name of the compound. In the given structure: - The longest carbon chain has 8 carbon atoms. - The numbering from the left gives the substituent the lowest possible number. - There is a single methyl group attached to the fifth carbon atom of the chain. Therefore, the correct answer is **A) 5-methylnonane**. --- This content can be used to help students or individuals studying organic chemistry practice the application of the IUPAC rules for naming organic compounds.
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