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प्रश्न
How will you show that air is dissolved in water?
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उत्तर
To show that air is dissolved in the water we take water in a pan and heat it. Just before it boils, you will notice some bubbles at the inner surface of the pan. These bubbles are formed because of air dissolved in water.
संबंधित प्रश्न
Define the term smog.
_______ and ______ are the two gases, which when taken together, make up about 99 percentage of air.
- Nitrogen
- carbon-di-oxide
- Noble gases
- Oxygen
______ is the main component of air.
The Scottish chemist ______ discovered carbon dioxide is present in air.
Give the components present in the air with a percentage?
______ is used as a substitute for compressed air in tyres.
Nitrogen is an essential element present in proteins and nucleic acids which are the building blocks of living things.
Nitrogen gas is so cold that moisture in the air condenses on it, creating a dense fog.
A list of words is given in a box. Use appropriate words to fill up the blank in the following statement.
Mountaineers carry oxygen ______ with them, while climbing high mountains.
Write just a few sentences for an imaginary situation if any of the following gases disappear from the atmosphere.
Nitrogen
