Formic acids is used in .

Options

A. textile industry
B. leather industry
C. Coagulation of rubber latex
D. None of the above

Answer

### Step-by-Step Solution:

1. **Identify the Compound**: The question asks about formic acid, which is the simplest carboxylic acid with the chemical formula HCOOH.

2. **Natural Sources**: Formic acid is naturally found in the venom of ants and bees. When these insects sting, they inject formic acid, which contributes to the pain and irritation.

3. **Industrial Uses**: Formic acid has several important industrial applications:
- **Rubber Industry**: It is used as a coagulant in the production of rubber.
- **Textile Industry**: It is utilized in dyeing and finishing processes.
- **Leather Industry**: Formic acid is employed in tanning leather.

4. **Summary of Uses**: Thus, formic acid is used in the rubber, textile, and leather industries, as well as being a natural product found in certain insect venoms.

### Final Answer:
Formic acid is used in the rubber industry, textile industry, and leather industry.

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