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प्रश्न
Give balanced equation to show how temporary hardness enters into water.
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उत्तर
Temporary hardness: Enters in water when rain water containing CO2 falls on earth and combines with limestone [CaCO3] & magnesite [MgCO3] layers forming respective soluble bicarbonates.
\[\ce{CaCO3 + H2O + CO2 -> \underset{\text{Cal. bicarbonate}}{Ca[HCO3]2}}\]
\[\ce{MgCO3 + H2O + CO2 ->\underset{\text{Magnesium bicarbonate}}{Mg[HCO3]2}}\]
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संबंधित प्रश्न
Give two examples of hydrated substances.
Name the compound responsible for temporary hardness.
Name the compound responsible for permanent hardness of water.
Boiling removes the ................ hardness of water.
What do you understand by
Hard water
State the disadvantages of using hard water.
Differentiate between Hard & soft water with suitable examples.
Give balanced equations to show how permanent hardness in water can be removed by addition of washing soda.
Fill in the blank:
Hard and soft water can be distinguished using _____.
A sample of water is given in a trough. State how would you prove experimentally whether the given sample is hard water or soft water.
