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प्रश्न
Explain how water plays an important role in the Industry.
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उत्तर
Uses of Water in Industry:
1. Water generates electricity in hydroelectric power stations.
2. Water generates steam in boilers, used for various industrial purposes.
3. Water finds application in chemical & other industries for cooling & cleaning operations.
संबंधित प्रश्न
Give the percentage of water in the following:
Rice and wheat grains
Complete the statement by filling in the blanks with the correct words.
Water is added to the atmosphere by _____________and _____________.
(burning of fossil fuels/condensation of vapour/ respiration by living organisms/photosynthesis)
State whether the following statement is true or false. If false, write the correct statement.
If ‘X’ g. of solute is added to 100 g. of water at t°C and the solution formed is a saturated solution, then ‘X’ g. is the solubility of the solute.
State whether the following statement is true or false. If false, write the correct statement.
Purification of water is carried out to remove – dissolved gases e.g. carbon dioxide and dissolved minerals like magnesium salts.
State whether the following statement is true or false. If false, write the correct statement.
Respiration uses up water from the atmosphere.
Explain the meaning of the following term:
Saturated solution
Name the following
The natural process by which circulation of water takes place from the earth’s surface to the atmosphere and back to the earth’s surface.
Name two gases which are insoluble in water.
Analogy
Ground water : ______ :: Surface-water : lakes
The human body requires ______ liters of water per day for proper functioning.
