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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
Identify the substance underlined, in the following case
A solid formed by reaction of two gases, one of which is acidic and the other basic in nature
What is meant by 'hydrated' and 'anhydrous' salts? Explain with examples.
The aqueous solution of one of the following salts will turn phenolphthalein indicator pink. This salt is:
(a) KCl
(b) K2SO4
(c) K2CO3
(d) KNO3
Consider the following salts:
Na2CO3, NaCl, NH4Cl, CH3COONa, K2SO4, (NH4)2SO4
Which of these salts will give:
basic solutions (or alkaline solutions)?
Name a salt whose solubility decreases with temperature.
State what would you observe when :
Washing soda crystals are exposed to the atmosphere.
State what would you observe when :
The salt ferric chloride is exposed to the atmosphere.
One of the constituents of baking powder is sodium hydrogencarbonate. The other constituent is :
The acid reacts with a base to form a neutral product called ______.
What are hygroscopic substances?
