Name the following:
a.
b.

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Step 1: Analyze the first structure. Identify the longest carbon chain as the parent chain. In this case, the parent chain is a 5-carbon chain, making it a pentane.

Step 2: Determine the substituents attached to the parent chain. The structure has a chlorine atom (Cl) and a methyl group (CH3) attached to the chain.

Step 3: Assign the correct locants (positions) to the substituents based on the lowest possible numbering rule. The chlorine is attached at carbon 2, and the methyl group is attached at carbon 3.

Step 4: Combine the substituents and parent chain name, ensuring alphabetical order for substituents. The name for the first structure is 2-chloro-3-methylpentane.

Step 5: Analyze the second structure. Identify the longest carbon chain as the parent chain. The parent chain is a 2-carbon chain, making it an ethane. Note the presence of two halogens (Br and Cl) and other substituents attached to the carbons.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Functional Groups

Functional groups are specific groups of atoms within molecules that are responsible for the characteristic chemical reactions of those molecules. Understanding functional groups is essential for naming organic compounds, as they dictate the compound's reactivity and properties. Common examples include hydroxyl (-OH), carboxyl (-COOH), and amino (-NH2) groups.

IUPAC Nomenclature

IUPAC nomenclature is a systematic method for naming organic chemical compounds. It provides a set of rules to ensure that each compound has a unique and descriptive name based on its structure. Key elements include identifying the longest carbon chain, naming functional groups, and using prefixes and suffixes to indicate the presence of substituents and functional groups.

Structural Isomerism

Structural isomerism occurs when compounds have the same molecular formula but different structural arrangements of atoms. This concept is crucial in organic chemistry as it affects the physical and chemical properties of the compounds. Types of structural isomers include chain isomers, position isomers, and functional group isomers, each differing in connectivity or arrangement.

Name the following:a. b.