Advertisements
Advertisements
प्रश्न
Explain with equation, what is noticed when permanent hard water is treated with Washing soda.
Advertisements
उत्तर
When washing soda or soda ash is added to hard water, the corresponding insoluble carbonates settle down and can be removed by filtration.
\[\ce{Ca(HCO3)2 + Na2CO3 ->[boil] CaCO3 \downarrow + 2NaHCO3}\]
\[\ce{Mg(HCO3)2 + Na2CO3 ->[boil] MgCO3 \downarrow + 2NaHCO3}\]
APPEARS IN
संबंधित प्रश्न
What is the effect on boiling point of water when pressure is increased?
Give two examples of hydrated substances.
Define the Hard water.
Name the compound responsible for temporary hardness.
Suggest one method for the removal along with the reaction for temporary hardness.
Temporary hardness of water can be removed by
Differentiate between Temporary & permanent hard water with suitable examples.
Give balanced equation to show how temporary hardness in water can be removed by boiling.
Give reason for the following:
Washing soda can be used to remove both temporary and permanent hardness in water.
Give two natural sources of hard water.
