What is a common method of water purification at home?

Options

A. Precipitation
B. Chlorination
C. Distillation
D. Boiling

Explanation

**Step-by-Step Solution:**

1. **Understanding Water Purification Methods**: There are various methods to purify water, including precipitation, chlorination, distillation, and boiling. Each method has its own application and effectiveness.

2. **Evaluating Precipitation**: Precipitation is a chemical method used primarily in industrial settings to remove unwanted or harmful ions from water. It is not commonly used for home water purification. Therefore, this option can be eliminated.

3. **Evaluating Chlorination**: Chlorination involves adding chlorine compounds to water to kill microbes. While it is effective, it is mostly used in swimming pools and municipal water supply systems rather than in individual homes. Thus, this option is also not suitable for home use.

4. **Evaluating Distillation**: Distillation is a process that removes soluble impurities from water by heating it to create vapor and then condensing it back into liquid. Although effective, distillation is not a common practice in most households due to the equipment required and the time it takes. This option can be eliminated as well.

5. **Identifying Boiling as the Common Method**: Boiling water involves heating it to a high temperature, which effectively kills microbes and causes volatile impurities to evaporate. This method is simple, accessible, and commonly practiced in homes for purifying water. Therefore, boiling is the most common method of water purification at home.

**Final Answer**: The common method of water purification at home is boiling.

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