Advertisements
Advertisements
प्रश्न
Name the gas produced when chlorine is dissolved in water and exposed to sunlight.
उत्तर
Oxygen
APPEARS IN
संबंधित प्रश्न
Why do organisms need water?
Name the two gases from which water is formed. What is the chemical composition of these two gases in water ?
Give balanced chemical equation for the reaction of water with Sodium oxide.
Give one word for the following statement:
A mixture of common salt and ice .
Select the correct answer of the following statement:
A drying agent placed in desiccator.
Give a balanced equation for the following conversion:
Calcium sulphate in permanent hard water to calcium carbonate using sodium carbonate.
Define ‘eutrophication’.
State the causes and consequences of ‘eutrophication’.
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.
______ plays a vital role in the evolution and survival of life.
