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प्रश्न
Draw a neat labelled diagram for the following experiment.
To determine the component of air used up in burning, by using phosphorus and a bell jar.
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उत्तर
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संबंधित प्रश्न
What was the ancient belief regarding the nature of matter ?
Give two uses of the following component present in air:
oxygen
How is air useful to windmills?
Mention five causes of air pollution.
What will happen if the number of vehicles and factories in your surroundings increases?
Name the following.
Gases that are harmful to the ozone layer
List five activities that are possible due to the presence of air.
Do sailors need the help of wind to sail?
Explain the following observations very briefly
The arrow of weather cock points towards a particular direction at a particular moment.
Paheli kept some water in a beaker for heating. She observed that tiny bubbles appeared before the water started to boil. She boiled the water for about 5 minutes and filled it in a bottle up to the brim and kept the bottle air tight till it cooled down to room temperature.
Do you think tiny bubbles will appear on heating the water taken out from the bottle? Justify your answer.
