Advertisements
Advertisements
प्रश्न
Why is air called a mixture? Give five facts in support of your answer.
टिप्पणी लिखिए
Advertisements
उत्तर
Air is a mixture because:
- Air has no formula, a mixture has no formula whereas the compound has a formula.
- No energy changes are involved to form air from various gases.
- When air is formed out of its constituents no change in mass and no change in volume takes place.
- Properties of air vary from place to place and from time to time. i.e. there is more CO2 in towns as compared to villages where more oxygen prevails as compared to towns.
- Components of air can be separated by simple physical methods.
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
Give one use for the following inert gases :
argon
Give one use for the following inert gase :
helium
Give one use for the following inert gase :
radon
Give one use for the following inert gase :
xenon
State one method by which :
- Oxygen is added to air
- Carbon dioxide is added to air
- Oxygen is removed from the air
- Carbon dioxide is removed from the air
Give reasons to support the fact that air is a mixture.
How does oxygen and carbon dioxide remain nearly constant in the atmosphere?
Explain natural and human-made sources of air pollution.
Why is air called breath of life? Enumerate functions of air or atmosphere.
State its role in warming the earth’s environment and in excess resulting in global warming.
