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Which of the following is the correct IUPAC name for CH3-CH2-CH2-CH(OH)-CH3?
Which of the following is the correct IUPAC name for CH3-CH2-CH2-CH(OH)-CH3?
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Practice Questions
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Q1
Which of the following is the correct IUPAC name for CH3-CH2-CH2-CH(OH)-CH3?
2-Pentanol
3-Pentanol
1-Pentanol
2-Methyl-1-butanol
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The correct IUPAC name for CH3-CH2-CH2-CH(OH)-CH3 is 3-Pentanol, as the hydroxyl group is on the third carbon of the longest chain.
Questions & Step-by-step Solutions
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Q
Q: Which of the following is the correct IUPAC name for CH3-CH2-CH2-CH(OH)-CH3?
Solution:
The correct IUPAC name for CH3-CH2-CH2-CH(OH)-CH3 is 3-Pentanol, as the hydroxyl group is on the third carbon of the longest chain.
Steps: 5
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Step 1: Identify the longest carbon chain in the molecule. In this case, the longest chain has 5 carbon atoms (CH3-CH2-CH2-CH-CH3).
Step 2: Count the number of carbon atoms in the longest chain. There are 5 carbon atoms, which means the base name is 'pentane'.
Step 3: Identify the functional group present in the molecule. Here, there is a hydroxyl group (-OH) attached to one of the carbon atoms.
Step 4: Determine the position of the hydroxyl group. The hydroxyl group is attached to the third carbon in the chain.
Step 5: Combine the base name with the position of the hydroxyl group. Since the hydroxyl group is on the third carbon, the name becomes '3-pentanol'.
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