Advertisements
Advertisements
प्रश्न
What do you understand by soft water?
Advertisements
उत्तर
Soft water is water that has a relatively low concentration of calcium carbonate and other ions. The water that lathers with soap easily is called soft water. It describes the type of water that contains few or no minerals like calcium (Ca) or magnesium (Mg) ions.
APPEARS IN
संबंधित प्रश्न
Name the four main sources of water.
State the importance of water cycle in nature.
What is metal activity series ?
Water has ...................... density and .................. volume at 4°C.
The solubility of a gas in water.............. with rise in temperature and.......................with rise in pressure.
Give one word for the following statement:
The gaseous form of water found in air .
Explain how the peculiar variation of density of water with temperature can cause water— pipes to burst in very cold places.
Give the importance of dissolved air – in water.
Select the correct answer of the following statement:
A decahydrate crystal.
Look at the map of Tamilnadu showing annual rainfall and answer the questions given below
- Identify the districts that get only low annual rainfall in Tamilnadu.
- Identify the districts that get a medium annual rainfall in Tamilnadu.
- State the districts that enjoy high annual rainfall in Tamilnadu.
