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प्रश्न
Fill in the blank space by choosing the correct word from the given list.
List: oxygen, carbonic, suIphurUioxide gas, precipitation, helium
Solution of carbon dioxide in water is called _________ acid.
उत्तर
Solution of carbon dioxide in water is called carbonic acid.
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संबंधित प्रश्न
Fill in the blank space by choosing the correct word from the given list.
List: oxygen, carbonic, suIphurUioxide gas, precipitation, helium
Dust particles help in the ________ of water vapour in air.
Write ‘True’ or ‘False’ in front of following statement.
The trapping of solar heat energy in the earth’s atmosphere is called greenhouse effect.
Tick (√) the most appropriate answer.
A gas which dilutes the activity of oxygen in air is:
Complete the statement given below by filling in the blank with the correct word from the words given:
The component of air which is variable in air above sea level and in air in general ______.
Which gas is essential for burning?
Write a note on nitrogen.
“Air is not an elementary substance, but a composition”. Why?
Metals like magnesium, iron, and sodium burn in oxygen and give basic ______.
Nitrogen is an essential element present in proteins and nucleic acids which are the building blocks of living things.
State whether the following statement is true or false. If false, correct them.
Air helps in the movements of sailing yachts and gliders but plays no role in the flight of birds and airplanes.
