What is the IUPAC name for the compound with the formula CH3-CH(CH3)-CH2-CH3?

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Question: What is the IUPAC name for the compound with the formula CH3-CH(CH3)-CH2-CH3?

Options:

Correct Answer: 2-Methylbutane

Solution:

The longest carbon chain has four carbons (butane), and there is a methyl group on the second carbon, making it 2-Methylbutane.

What is the IUPAC name for the compound with the formula CH3-CH(CH3)-CH2-CH3?

What is the IUPAC name for the compound with the formula CH3-CH(CH3)-CH2-CH3?

Step 1: Identify the carbon atoms in the compound. The formula CH3-CH(CH3)-CH2-CH3 has 5 carbon atoms.
Step 2: Draw the structure of the compound to visualize the carbon chain. You will see a main chain of 4 carbon atoms with a branch (methyl group) on the second carbon.
Step 3: Count the number of carbon atoms in the longest continuous chain. The longest chain has 4 carbon atoms, which is called butane.
Step 4: Identify the position of the methyl group. The methyl group (CH3) is attached to the second carbon in the chain.
Step 5: Combine the information to name the compound. Since there is a methyl group on the second carbon of butane, the IUPAC name is 2-Methylbutane.

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