Advertisements
Advertisements
Question
Why is it said that-
Air is a homogeneous mixture of various gases.
Advertisements
Solution
In the case of air, the majority of it contains nitrogen and oxygen. These gases cannot be readily differentiated from one another, and the air has a uniform composition of these gases throughout. Hence it is a homogenous mixture of various gases.
RELATED QUESTIONS
Match the statements in Column A, with those in Column B.
| Column A | Column B |
| 1. Largest Constituent of air, which dilutes the activity of oxygen. | (a) Oxygen |
| 2. A gas used for filling weather observeation balloons. | (b) Carbonic acid |
| 3. An acid formed by the dissolution of sulphur dioxide gas in water. | (c) Sulphuric acid |
| 4. An acid formed by the dissolution of carbon dioxide in water. | (d) Helium |
| 5. A gas vital for respiration. | (e) Nitrogen |
Write the chemical name of The white insoluble solid formed on the reaction of carbon dioxide with lime water.
Give two uses of the following component present in air:
oxygen
State four steps to be taken to control air pollution.
Describe a simple experiment with the help of a diagram to show that Air has mass
Describe a simple experiment with the help of a diagram to show that Air exerts pressure
With whom should I pair up?
| Group A | Group B | ||
| (1) | Air | (a) | Excretion |
| (2) | Water | (b) | Scattering of light |
| (3) | Soil | (c) | Plasticity |
What is the importance of air in transmission of sound?
The composition of air is always exactly the same.
About 78% of the volume of air is ______.
