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प्रश्न
Permanent hardness of water is due to the presence of _______.
पर्याय
sulphates and chlorides
dust particles
carbonates and bicarbonates
other soluble particles
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उत्तर
Permanent hardness of water is due to the presence of sulphates and chlorides.
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संबंधित प्रश्न
Give two examples of hydrated substances.
Define the Soft water.
Define the Hard water.
Differentiate between Temporary & permanent hard water with suitable examples.
Give reason for the following:
Washing soda can be used to remove both temporary and permanent hardness in water.
Using given sample of temporary and permanent hard water, soft water, ordinary soap, detergent and washing soda how would you distinguish between hard and soft water?
State the causes of hardness in water.
Temporary hardness of water can be removed by ________ of water.
What is permanent hardness of water? How can it be removed?
Name the process by which temporary hardness is easily removed from the water.
