Nitrogen is _______ than air.

Fill in the Blanks

Nitrogen is lighter than air.

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Chapter 11: Air - Exercises [Page 122]

Chapter 11 Air
Exercises | Q II. 2. | Page 122

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.

Statement given below is incorrect. Write the correct statement :

During thunder and lightning, nitrogen and oxygen combine to form nitrogen dioxide gas.

What are the two necessary conditions for rusting of iron?

Complete the statement given below by filling in the blank with the correct word from the words given

___________is an example of a pollutant present in the air.

Write a note on nitrogen.

Air contains a small amount of CO₂, Water vapour, and some other gases like ______, etc.

How to show the presence of carbon-di-oxide in the air?

______ gas is essential for the proper growth of all plants.

Observe the picture given in Fig. carefully and answer the following questions.

Why is he putting a cover on his nose?

Write just a few sentences for an imaginary situation if any of the following gases disappear from the atmosphere.

Oxygen