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प्रश्न
Saloni took a piece of burning charcoal and collected the gas evolved in a test tube.
(a) How will she find the nature of the gas?
(b) Write down word equations of all the reactions taking place in this process.
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उत्तर
(a) Add a few drops of water in the test tube containing gas. Now, cover the test tube and shake it well. After shaking, test the solution with blue litmus and red litmus. It will turn blue litmus red. Thus, the gas is acidic in nature.
(b) Charcoal reacts with oxygen to form carbon dioxide gas.
Carbon dioxide reacts with water to form carbonic acid, which turns blue litmus paper red.
संबंधित प्रश्न
Give reasons for the following.
Copper cannot displace zinc from its salt solution.
Give reasons
Magnesium is used in fire works.
Give two uses of Germanium
Statements given below are incorrect. Write the correct statements :
Aluminium is best conductor of electricity.
Take an element from an alkali metal and one from an alkaline earth metal and write an equation for their action with:
Water.
Write name.
The oxide that forms salt and water by reacting with both acid and base.
Write name.
The reagent that dissolves noble metals.
Give reasons for the following:
Most metals conduct electricity well.
Halogen reacts with acid.
Which one of the following four metals would be displaced from the solution of its salts by other three metals?
