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प्रश्न
Give reason for It is difficult to cook in hills compared to plain.
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उत्तर
Water boils at a lower temperature in the hills, where the atmospheric pressure is lower than in the plains. This is why it takes a longer time to cook in hilly regions.
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संबंधित प्रश्न
What is the effect on boiling point of water when pressure is increased?
Define the Soft water.
Name the compound responsible for temporary hardness.
What do you understand by
Hard water
What are the advantages of hard water.
Give reason for the following:
Washing soda can be used to remove both temporary and permanent hardness in water.
Using given sample of temporary and permanent hard water, soft water, ordinary soap, detergent and washing soda how would you prove the advantage of detergent over soap.
Explain the meaning of the terms – hard water & soft water.
Permanent hardness of water is due to the presence of _______.
Write a note on ion exchange.
