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प्रश्न
Explain why chlorine is used for sterilising drinking water supply.
उत्तर
Chlorine is a disinfectant used for sterilising drinking water supply in order to kill disease-causing bacteria that the water or water pipes might contain.
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संबंधित प्रश्न
Write a balanced equation for the preparation of the following salts:
Copper sulphate from Copper Carbonate.
What is meant by 'a family of salts'? Explain with examples.
What is meant by 'hydrated' and 'anhydrous' salts? Explain with examples.
The aqueous solution of one of the following salts will turn red litmus to blue. This salt is:
(a) potassium sulphate
(b) sodium sulphate
(c) sodium chloride
(d) potassium carbonate
Write the name and formula of one salt each which contains:
two molecules of water of crystallisation
What is a ‘salt’?
Name a salts whose solubility increases with temperature.
Name two carbonates do not produce carbon dioxide on heating.
Copy and complete the following table which refers to the action of heat on the carbonate:
| Carbonate | Colour of residue on cooling |
| Zinc Carbonate |
Salt which is formed by the partial replacement of hydrogen ions of an acid by a metal is called ______.
