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प्रश्न
Explain the following observations very briefly
An empty glass in fact is not empty.
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उत्तर
In an empty glass there is always air present which covers up the space therefore, it cannot be said empty. Air is transparent, weightless and doesn’t have a definite shape or volume, thus, we cannot see it.
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संबंधित प्रश्न
Briefly state the importance of Nitrogen.
Classify Water. Also give a balanced equation to prepare it.
Define the following:
Combustion.
Complete the statement given below by filling in the blank with the correct word from the words given
___________is an example of a pollutant present in the air.
Tabulate the various components of air, including the components with variable composition.
Write about the reaction of nitrogen with non metals.
The air in coastal areas have more oxygen.
Boojho took an empty plastic bottle, turned it upside down and dipped its open mouth into a bucket filled with water. He then tilted the bottle slightly and made the following observations.
- Bubbles of air came out from the bottle.
- Some water entered the bottle.
- Nitrogen gas came out in the form of bubbles and oxygen got dissolved in water.
- No bubbles formed, only water entered the bottle.
Which observations is/are correct?
Write just a few sentences for an imaginary situation if any of the following gases disappear from the atmosphere.
Oxygen
Write just a few sentences for an imaginary situation if any of the following gases disappear from the atmosphere.
Nitrogen
