MEDIUM
Earn 100

What is air made up of?
Important Questions on Pollution of Air and Water
HARD
Draw a neat labelled diagram for the following experiment.
To determine the component of air used up in burning by using phosphorus and a bell jar.

EASY

MEDIUM


MEDIUM
Tabulate the various components of the air, Including the components with variable composition.

EASY

MEDIUM

MEDIUM
Form similar pair of words.
Nitrogen and _____ / oxygen and .

HARD

MEDIUM

MEDIUM

EASY

MEDIUM

HARD
Match the following.
List I | List II |
1. The constituent of air which is around . | A. Nitrogen |
2. The constituent of air which is inert or unreactive. | B. Oxygen |
3. The constituent of air which is non-combustible, but supports combustion. | C. Sulphur dioxide |
4. A pollutant in air responsible for acid rain. | D. Carbon dioxide |
5. The main rare gas present in air. | E. Argon |

MEDIUM
Explain the composition of air with the help of a diagram.

EASY


HARD
(the components of air given as and


MEDIUM
Compare the main components of air i.e. nitrogen, oxygen & carbon dioxide with reference to their density & solubility, nature & reactivity.

