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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
Fill in the blank :
________ is the most abundant inert gas present in air.
Give reason:
Aquatic animals and plants are able to survive in the matter.
Complete the statement given below by filling in the blank with the correct word from the words given:
The product formed which is common to both combustion and respiration is ______.
Of the total volume of air – 4/5th is nitrogen. State the utility or consequence of this ratio.
Solvay process is a method to manufacture
How do astronauts breathe when they go beyond the earth’s atmosphere?
How will you show that air is dissolved in water?
All living things use oxygen for breathing.
What is the presence of harmful substance in the air called?
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.
