1st Class Science Air, Water and Weather Air as a mixture of Gas

Air as a mixture of Gas

Category : 1st Class

*    Air as a mixture of Gas

 

             Air is a mixture of the following gases:

  1. Nitrogen                               
  2. Oxygen
  3. Carbon dioxide                        
  4. Hydrogen
  5. Argon                                   
  6. Neon
  7. Helium

The air present in atmosphere consists of 78 percent nitrogen, 21 percent oxygen and remaining 1 percent is of other gases.

 

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  Which one of the following is a true statement?

(a) Air is the mixture of solid things

(b) Air is the mixture of liquid things

(c) Air is the mixture of gases

(d) Air is the mixture of food items

 

Answer: (C)

Explanation

Option (C) is correct because, this is a true statement. Therefore, rest of the options is incorrect.

 

 

Which of the following is not a part of air?

(a) Hydrogen                                      

(b) Apple

(c) Nitrogen                                      

(d) Oxygen

 

Answer: (b)

Explanation 

Option (B) is correct because, it is a fruit. Therefore, rest of the options is incorrect.

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