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प्रश्न
Name or state the following:
A substance added to remove both temporary and permanent hardness in water.
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उत्तर
Washing soda (Na,CO3)
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संबंधित प्रश्न
What causes the temporary and permanent hardness of water?
What do you understand by
Permanent hard water
What are the causes for:
Temporary hardness
Name the substance which makes water temporarily hard
Name the substance which makes water permanently hard.
Using given sample of temporary and permanent hard water, soft water, ordinary soap, detergent and washing soda how would you remove temporary hardness from water without using a chemical compound?
Both temporary & permanent hardness in water can be removed by addition of washing soda. Give balanced equations for the same.
Give a reason for the following.
Hard water is not good for washing utensils.
The pleasant taste of drinking water is due to the presence of a dissolved substance which includes air, CO2, and minerals.
1000 g aqueous solution of CaCO3 contains 10 g of calcium carbonate. Concentration of the solution is ______.
