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प्रश्न
How will you prove that air supports burning?
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उत्तर
Take a candle. Place it in a tub. Light the candle and also fill the tub with some water. Cover the candle with an inverted glass. You will find that the candle blows out after burning for some time, and the water level inside the inverted glass rises up to some extent.
The component, oxygen, of air inside the glass is used up in burning. Therefore, water occupies that space. This shows that air supports burning.
संबंधित प्रश्न
Complete and balance the following chemical equation.
\[\ce{HgO ->[heat]}\] ______ + _______
Fill in the blank :
________ is the most abundant inert gas present in air.
Fill in the blanks
Oxygen is used in ___________the food to get _______.
Write ‘true’ or ‘false for the following;
The major component of air is oxygen.
State what would happen, if the air above the earth contained mainly oxygen and no nitrogen
Name the following:
The product of respiration released in exhaled air, other than carbon dioxide.
_______ can be seen moving in a beam of sunlight in a dark room.
What was the old name of nitrogen?
Carbon dioxide gas is ______ in nature.
Usha took a lump of dry soil in a glass and added water to it till it was completely immersed. She observed bubbles coming out. The bubbles contain ______.
