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प्रश्न
List five activities that are possible due to the presence of air.
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उत्तर
- Respiration
- Photosynthesis
- Burning
- Movement of sailing yachts, gliders, parachutes, airplanes
- Generation of electricity by windmills
संबंधित प्रश्न
Write the chemical name of The white insoluble solid formed on the reaction of carbon dioxide with lime water.
What is air pollution?
Fill in the blank
Polluted air is harmful to ____.
Write ‘true’ or ‘false for the following;
Air is a compound.
Tick (√) the correct alternative from the choice given for the following statement.
The gases which cause acid rain are
Tick (√) the correct alternative from the choice given for the following statement.
Respiration
State whether the following statement is ‘true’ or ‘false’. If false write the correct statement.
Air is a mixture and not a compound since the components of air cannot be separated by physical methods.
Explain Lavoisier’s experiment which provided evidence to the discovery of components in air.
Fill in the blank:
The gas evolved as a product of combustion as well as respiration is ______.
Draw a neat labelled diagram for the following experiment.
To prove that oxygen is non-combustible, but supports combustion.
