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प्रश्न
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.
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उत्तर
On adding ordinary soap in the sample and shaking if this water gives lather easily it is soft water otherwise it is hard water.
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संबंधित प्रश्न
What is the effect on boiling point of water when pressure is increased?
Give two examples of hydrated substances.
Give two examples for Efflorescent substance.
Define the Hard water.
Name the compound responsible for temporary hardness.
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:
Washing soda can be used to remove both temporary and permanent hardness in water.
Permanent hardness of water is due to the presence of _______.
Temporary hardness of water can be removed by
