Organic acid used in preparation of vinegar is

Options

A. Acetic acid
B. Citric acid
C. Lactic acid
D. Gluconic acid

Answer

**Step-by-Step Solution:**

1. **Understanding Vinegar**: Vinegar is commonly known as a sour liquid used in cooking and food preservation. It is primarily an aqueous solution that contains a specific organic acid.

2. **Identifying the Organic Acid**: The main organic acid present in vinegar is acetic acid. This is crucial to know as it distinguishes vinegar from other liquids that may contain different acids.

3. **Concentration of Acetic Acid**: In vinegar, the concentration of acetic acid typically ranges from 5% to 20%. This concentration contributes to the characteristic taste and smell of vinegar.

4. **Formation of Acetic Acid**: Acetic acid is produced through the fermentation process. This involves the conversion of sugars into alcohol and then into acetic acid.

5. **Role of Microorganisms**: The fermentation process is facilitated by specific microorganisms. Yeast is used to ferment sugar into alcohol, and then a type of bacteria known as Acetobacter aceti converts the alcohol into acetic acid.

6. **Conclusion**: Therefore, the organic acid used in the preparation of vinegar is acetic acid.

**Final Answer**: The organic acid used in the preparation of vinegar is **acetic acid**.

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