Acetic acid is manufactured by the fermentation of `:`

Options

A. Ethanol
B. Methanol
C. Ethanal
D. Methanal

Answer

**Step-by-Step Solution:**

1. **Understanding Acetic Acid:**
- Acetic acid is a carboxylic acid with the chemical formula CH₃COOH. It is also known as ethanoic acid due to its two-carbon structure.

2. **Fermentation Process:**
- The process of fermentation is a biological process that occurs in the absence of oxygen, known as anaerobic conditions. This means that the conversion of substances happens without the presence of oxygen.

3. **Role of Ethanol:**
- Ethanol (C₂H₅OH) is a type of alcohol that can be converted into acetic acid through fermentation.

4. **Bacteria Involved:**
- The specific bacteria involved in the fermentation of ethanol to acetic acid is called Acetobacter. This bacterium plays a crucial role in the oxidation of ethanol.

5. **Oxidation Reaction:**
- During fermentation, ethanol undergoes oxidation to form acetic acid. The reaction can be summarized as:
\[ \text{Ethanol} \xrightarrow{\text{Acetobacter}} \text{Acetic Acid} \]

6. **Conclusion:**
- Therefore, acetic acid is manufactured by the fermentation of ethanol in the presence of Acetobacter bacteria under anaerobic conditions.

**Final Answer:**
Acetic acid is manufactured by the fermentation of ethanol.

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