Question

Which of the following is not the part of composition
of air?
0
Nitrogen
Oxygen
O Carbon
dioxide
Aluminium​

Answer 1

Answer:

Aluminium

Explanation:

Components of Air - Nitrogen, Oxygen, Carbon Dioxide, Water Vapor and Other Gases.

Answer 2

Answer:

Aluminium is not the part of air composition.

Therefore, the option (d) is correct.

Explanation:

• Air is the mixture of many gases, among which two are dominant, which are 78% nitrogen and 21% oxygen gas. Both nitrogen and oxygen present in molecular form i.e. N₂ and O₂.
• Other than this air has 0.93% of argon gas (Ar), 0.04% of carbon dioxide and small amount of other gases.
• Air composition also has small amount of water vapors which varies as 1% on sea level  and 0.4% over whole atmosphere.
• Aluminum is mostly found in Earth's curst around 8.1%. It is found in minerals which are usually aluminum silicates. It is extracted  commercially by Hall Heroult's process.