Answered

A sample of air is slowly passed through aqueous Sodium hydroxide and then over heater copper.


Which gases are removed by this process?

ACarbon dioxide and water vapour
BCarbon dioxide and oxygen
CNitrogen and oxygen
DNitrogen and water vapour

Verified Answer :

syed514

A sample of air is slowly passed through aqueous Sodium hydroxide and then over heater copper Carbon dioxide and oxygen.

tatendagota

Answer:

Option b) Carbon dioxide and oxygen

Explanation:

Thinking process:

Sodium hydroxide is an alkaline solid substance. It reacts with acids to form salts and water. In this case, it is known that carbon dioxide, CO₂, is an acidic gas. Therefore, the reaction gives a salt that results in carbon dioxide being absorbed by the sodium hydroxide.

Heated copper is an excellent removal of oxygen. This is because monovalent copper, Cu, has a deep binding affinity for oxygen.  Hence the the oxygen trapped by the atom.

Related Questions