Advertisements
Advertisements
प्रश्न
How will you show that air is dissolved in water?
Advertisements
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
Answer the question put against the following constituents of air :
Carbon dioxide : “Although carbon dioxide plays no role in respiration, all life would come to an end if there is no carbon dioxide in air.” Support this statement with relevant facts.
Fill in the blank :
________ is the most abundant inert gas present in air.
Statement given below is incorrect. Write the correct statement :
Helium gas at low pressure is used for filling electric bulbs.
Name three different appliances where air is utilized.
Name the following:
The component of air which does not support combustion.
Classify the following.
( Dog, Cat, coconut tree, monkey, brinjal plant, papaya plant)
| Things which give out oxygen | Things which give out carbon dioxide |
_______ can be seen moving in a beam of sunlight in a dark room.
The Scottish chemist ______ discovered carbon dioxide is present in air.
Air contains a small amount of CO2, Water vapour, and some other gases like ______, etc.
Write the reaction of carbon dioxide with lime water.
