MCQ
Drinking water can be made absolutely safe by adding some:
- AAspirin tablets
- BIodine tablets
- ✓Chlorine tablets
- DChlorophyll tablets
✓
Answer
Correct option: C.
Chlorine tablets
Drinking water can be made absolutely safe by adding some chlorine tablets. Chlorine is a traditional element which is used for purification of water. When chlorine is added to water, it reacts with water to produce hydrochloric acid. This acid kills the microbes present in water. But, the chlorine cannot kill all the harmful organisms present in the water. The over-usage of chlorine on water causes negative effect on the consumer. So, more advanced techniques are discovered for purifying water than adding chlorine tablets.
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