Questions: Which of the following functional groups cannot be oxidized to a carboxylic acid? Alkyne 3-degree alcohol 1-degree alcohol Alkene

Which of the following functional groups cannot be oxidized to a carboxylic acid? Alkyne 3-degree alcohol 1-degree alcohol Alkene
Transcript text: Which of the following functional groups cannot be oxidized to a carboxylic acid? Alkyne 3-degree alcohol 1-degree alcohol Alkene
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Solution

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Solution Steps

Step 1: Identify the Functional Groups

The question asks which functional group cannot be oxidized to a carboxylic acid. The functional groups provided are:

  • Alkyne
  • 3-degree alcohol (tertiary alcohol)
  • 1-degree alcohol (primary alcohol)
  • Alkene
Step 2: Analyze Oxidation Potential
  • Alkyne: Alkynes are hydrocarbons with a triple bond. They are not typically oxidized directly to carboxylic acids.
  • 3-degree alcohol: Tertiary alcohols (3-degree alcohols) cannot be oxidized to carboxylic acids because they lack a hydrogen atom on the carbon bearing the hydroxyl group.
  • 1-degree alcohol: Primary alcohols can be oxidized first to aldehydes and then to carboxylic acids.
  • Alkene: Alkenes can be oxidized to diols and further to carboxylic acids under strong oxidative conditions.
Step 3: Determine the Correct Answer

Based on the analysis, the functional group that cannot be oxidized to a carboxylic acid is the tertiary alcohol (3-degree alcohol).

Final Answer

\(\boxed{\text{3-degree alcohol}}\)

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