Advertisements
Advertisements
प्रश्न
Which, of the following procedures will give you water free from all impurities?
पर्याय
Adding chlorine tablets
Distillation
Boiling
Filtration
उत्तर
Boiling
Explanation -
When water is heated, it boils at a temperature of 100°C. At this high temperature, all the harmful microorganisms (or germs) present in water are killed and it becomes absolutely safe for drinking.
APPEARS IN
संबंधित प्रश्न
What works are undertaken to make water available even after the rainy season?
Water which looks clean still has disease carrying ______ and ______ impurities.
(insects, microorganisms, particles, dissolved, harmful)
Find out the wrong statement and write it in its correct form.
Chlorination is a commonly used chemical method for killing germs in water.
Explain the traditional ways of purifying water to make it fit for drinking.
Which of the following is a part of the inorganic impurities of the sewage?
Why are open drains a concern?
The process of adding chlorine in adequate amounts to water is called ______.
Temporary and permanent hardness can be removed by the method of boiling.
Match the following:
1. | The density of pure water | a. | Inflammable air |
2. | Henry Cavendish | b. | Cathode |
3. | Hydrogen | c. | 1 g/cm3 |
4. | Negative carbon electrode | d. | Hydrogen |
Name the chemical which converts chlorides and sulphates into insoluble carbonates.