Which of the following measures does not help in purifying tap water?

Options

A. Boiling
B. Storing in earthen pots
C. Adding chlorine tablets
D. Filtering through candle filters

Answer

To determine which measure does not help in purifying tap water, let's analyze each option provided:

1. **Boiling**: Boiling water is a traditional method used to kill bacteria and other pathogens. When water is boiled, it reaches a temperature that can effectively eliminate harmful microorganisms. Therefore, boiling does help in purifying tap water.

2. **Storing in the earthen pot**: While storing water in earthen pots can help keep it cool and fresh, it does not actively purify the water. It may not remove impurities or kill bacteria effectively. Thus, this method does not contribute to the purification of tap water.

3. **Adding chlorine tablets**: Chlorine tablets are commonly used to disinfect water. They kill bacteria and other harmful organisms, making the water safer for drinking. Hence, adding chlorine tablets does help in purifying tap water.

4. **Filtering through candle filters**: Candle filters are designed to remove impurities and pathogens from water. They are effective in providing clean drinking water by filtering out contaminants. Therefore, filtering through candle filters does help in purifying tap water.

Based on the analysis above, the measure that does not help in purifying tap water is:

**Answer: Storing in the earthen pot (Option B)**.