Conc. `H_(2)SO_(4)` is diluted

Options

A. By adding water in `H_(2)SO_(4)`
B. By adding `H_(2)SO_(4)` in water
C. By adding glacial acetic acid in `H_(2)SO_(4)`
D. None of the above

Explanation

To dilute concentrated sulfuric acid (H₂SO₄) safely, follow these steps:

### Step-by-Step Solution:

1. **Gather Materials**:
- Concentrated sulfuric acid (H₂SO₄)
- Distilled water
- A beaker or a glass container
- A stirring rod
- Safety equipment (gloves, goggles, lab coat)

2. **Safety Precautions**:
- Put on gloves, goggles, and a lab coat to protect yourself from splashes.
- Work in a well-ventilated area or under a fume hood to avoid inhaling fumes.

3. **Measure the Water**:
- Measure the required amount of distilled water in a beaker. It is important to use a sufficient volume of water to ensure safe dilution.

4. **Add Acid to Water**:
- Slowly and carefully add concentrated sulfuric acid to the water. **Never add water to acid**, as this can cause a violent exothermic reaction and splattering.

5. **Stir the Mixture**:
- Use a stirring rod to gently mix the solution. This helps to dissipate the heat generated during the dilution process.

6. **Monitor Temperature**:
- Be aware that the solution will heat up due to the exothermic nature of the reaction. Ensure that the heat is dissipated into the atmosphere and that the mixture does not boil.

7. **Final Check**:
- Once the acid is fully diluted and the temperature has stabilized, check the solution for clarity and ensure it is at the desired concentration.