Advertisements
Advertisements
Question
Differentiate between Temporary & permanent hard water with suitable examples.
Advertisements
Solution
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.
RELATED QUESTIONS
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.
What do you observe when Washing soda is exposed to air ?
Define the Hard water.
Suggest one method for the removal along with the reaction for temporary hardness.
Name three water borne diseases.
What are the advantages of soft water.
State the disadvantages of using hard water.
Explain the permutit method for softening hard water.
Differentiate between Hard & soft water with suitable examples.
Give balanced equation to show how temporary hardness enters into water.
Give reason for the following:
Hardness in temporary water can be removed by boiling, but hardness in permanent hard water cannot.
Fill in the blank:
Hard and soft water can be distinguished using _____.
Give two natural sources of hard water.
Two samples of water are placed in a beaker individually. State how you will determine experimentally which of the two samples contains permanent hard water.
Permanent hardness of water is due to the presence of _______.
What are the methods of removing hardness of water?
Write a note on ion exchange.
Temporary hardness of water can be removed by
