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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
Give two examples for Efflorescent substance.
Define the Soft water.
Name the compound responsible for temporary hardness.
Suggest one method for the removal along with the reaction for temporary hardness.
Boiling removes the ................ hardness of 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 _____.
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.
Temporary hardness of water can be removed by ________ of water.
What is permanent hardness of water? How can it be removed?
