Advertisements
Advertisements
प्रश्न
Differentiate between Temporary & permanent hard water with suitable examples.
उत्तर
Temporary hard water : contains bicarbonate of calcium or magnesium. Hardness can be removed by boiling water.
Permanent hard water : contains sulphates or chlorides of calcium and magnesium. Hardness cannot be removed by boiling water.
संबंधित प्रश्न
What is the effect on boiling point of water when pressure is increased?
What is the effect on boiling point of water when impurity is added.
Give two examples for Efflorescent substance.
What do you observe when Washing soda is exposed to air ?
Define the Soft water.
Define the Hard water.
Name the compound responsible for temporary hardness.
Name three water borne diseases.
What do you understand by
Soft 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 equation to show how temporary hardness in water can be removed by boiling.
Give reason for the following:
Hardness in temporary water can be removed by boiling, but hardness in permanent hard water cannot.
Give reason for the following:
Washing soda can be used to remove both temporary and permanent hardness in water.
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.
Permanent hardness of water is due to the presence of _______.
Temporary hardness of water can be removed by ________ of water.
