Why is air a mixture and a compound?
17/12/2021 · yes air is a mixture because it is combination of many gases dust (both small and large particles) and smoke which do not chemically combine to give new products. individual components show individual properties and the components of air can be seperated easily by physical process.
Why is air regarded as a Mixtur?
Air is regarded as a mixture because:(A) Its pressure may vary(B) Its temperature may change(C) Its volume changes under different conditions(D) Its composition may vary. Air is regarded as a mixture because: (A) Its pressure may vary. (B) Its temperature may change.
What is the composition of air?
Air is regarded as a mixture because: A. its pressure may vary. B. its temperature may change. C. iis volume changes under different conditions. D. its composition may vary. Medium. Open in App. Solution. Verified by Toppr. Correct option is . D. its composition may vary. Air is composed of various gases in different proportions which can be separated using chemical methods. Was …
Which gas is present in the air that supports combustion?
21/10/2021 · Air is a homogeneous mixture because. An example of a homogeneous mixture would be something like lemonade. Because each layer of the Earths atmosphere has a different density each layer of air is its own homogeneous mixture. Often it is easy to confuse a homogeneous mixture with a pure substance because they are both uniform.
Why air is a mixture?
Air is considered as a mixture because its a mixture of different gases. The composition of air is- 78%Nitrogen, 21%Oxygen and 1% Other inert gases like Hydrogen, Argon , Helium, Neon, etc.
How can you prove that air is a mixture?
Air is a mixture and not a compound because of the following reasons: Air can be separated into its constituents such as oxygen, nitrogen etc. by fractional distillation of liquid air. Air shows the properties of all the gases present in it.
Why air is considered as a mixture Class 9?
The composition of air is not fixed but varies with time and place. Therefore, it cannot be defined by a fixed chemical formula. This is the property of a mixture.
What type of mixture is air?
Homogeneous mixtureHomogeneous mixture In air, all gases would have a uniform composition. Therefore, the air is an example of homogeneous mixture.
Is air a pure substance or a mixture?
- Air is not supposed to be considered as a pure substance. Because air is a mixture of different gases. - Air mostly contains nitrogen and oxygen in about 78% and 20% respectively. Note: Elements and compounds have a constant composition throughout and can thus be said as pure substances.
Why air is a mixture Class 6?
Why is air considered as a mixture? Ans: Air contains oxygen and nitrogen as its major constituents of air. These gases retain their properties in air. So the air is called a mixture.25-Sept-2019
Why is air considered as a mixture and not compound?
Air is a mixture, but not a compound because air can be separated into different components such oxygen, nitrogen etc through the process of fractional distillation. Also, air shows all the properties of gases present in it.
Why air is a mixture of different gases?
The air around us is a mixture of gases, mainly nitrogen and oxygen, but containing much smaller amounts of water vapor, argon, and carbon dioxide, and very small amounts of other gases. ... Because of the action of wind, the percent composition of air varies only slightly with altitude and location.