Hard water and soft water

IMPORTANT

Hard water and soft water: Overview

In this topic, we will study the hard and soft water. We will talk about the definitions of both these terms. It discusses what are the various causes of hardness of water along with its classifications.

Important Questions on Hard water and soft water

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IMPORTANT

Describe what is softening of hard water?

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We can remove permanent hardness by boiling.

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We can remove the permanent hardness by adding

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Explain ion- exchange method to remove permanent hardness of water.

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Complete the following reaction which is used in the method of removing permanent hardness.

MgSO4+Na2CO3

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We can remove permanent hardness by boiling.

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Write one method by which we can remove permanent hardness.

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 When the calcium and magnesium ions of hard water react with soap, it forms a _____, 

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Write any two disadvantages of hard water.

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We can remove permanent hardness by boiling the water.

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Soap lathers well in hard water.

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Temporary hardness is due to the presence of dissolved bicarbonates of  _______.

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Suggest some methods for the removal of following along with the reactions: 

Permanent hardness. 

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Suggest some methods for the removal of following along with the reactions: 

Temporary hardness. 

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Write the differences between hard water and soft water. 

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What is hard and soft water? What are the types of hardness in water? Write the methods used for removal of hardness of water using washing soda? 

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How temporary hardness of water is removed using boiling method? 

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What are the disadvantages of hardness of water? 

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Define the following term with examples: 

Hard water.