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प्रश्न
Name the substance which makes water temporarily hard
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उत्तर
Hydrogen carbonates of calcium and magnesium
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संबंधित प्रश्न
Discuss the principle and method of softening of hard water by synthetic ion-exchange resins.
What do you understand by
Temporary hard water
What are the causes for
Permanent hardness
Name the substance which makes water permanently hard.
Explain with equation, what is noticed when permanent hard water is treated with
Slaked time
How will you distinguish between temporary hard water and permanent hard water?
Using given sample of temporary and permanent hard water, soft water, ordinary soap, detergent and washing soda how would you distinguish between temporary hard water and permanent hard water?
Both temporary & permanent hardness in water can be removed by addition of washing soda. Give balanced equations for the same.
Select the correct answer from the choice given in the options.
A substance which causes hardness in water _____.
Soap lathers well in hard water.
What are the causes of temporary hardness and permanent hardness of water?
Why does hard water not form lather with soap?
The pleasant taste of drinking water is due to the presence of a dissolved substance which includes air, CO2, and minerals.
What is soft water?
Which water is hard?
