Give two examples of hydrated substances.

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Removal of Hardness of Water

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पाठ 8: Water - Exercise II [पृष्ठ ११५]

पाठ 8 Water
Exercise II | Q 6.1 | पृष्ठ ११५

What do you observe when Washing soda is exposed to air ?

Define the Soft water.

Define the Hard water.

Suggest one method for the removal along with the reaction for temporary hardness.

Boiling removes the ................ hardness of water.

Explain with equation, what is noticed when permanent hard water is treated with Washing soda.

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 _____.

Explain the meaning of the terms – hard water & soft water.

Name the process by which temporary hardness is easily removed from the water.