Advertisements
Advertisements
प्रश्न
State what do you understand by the term ‘air’. Explain its importance to mankind.
Advertisements
उत्तर
Air is a mixture whose composition varies at different intervals of time and different places of the world. Man cannot survive without air and water and hence the air is very essential for survival.
संबंधित प्रश्न
Write the chemical name of The white insoluble solid formed on the reaction of carbon dioxide with lime water.
Give two uses of the following component present in air:
nitrogen
What is air pollution?
Give a brief account of the discovery of air and the scientists involved.
A mixture has a variable composition. Give three other reasons why air is considered a mixture and not a compound.
While freezing, the ______ of water is lowered.
Draw a neat labelled diagram for the following experiment.
To study the presence of carbon dioxide in air.
Air has no ______ & ______.
Which of the following statements is incorrect?
Explain the following observations very briefly
A firki does not rotate in a closed area.
