Question

Which
one of the following process fovolved
Chemical reaction
as Heating copper wire in pressence of air at
High temperature
Storing of oxygen gas under pressure in
gas Cylinder
b
Vidya 210​

Answer 1

Answer:

Heating copper wire in presence of air at high temperature involves chemical reaction.

• When copper is heated in the presence of air in a very high temperature , a chemical reaction takes place.

• In this situation, the highly heated copper reacts with the oxygen of the air to form a thin layer of copper oxide on the surface of metallic copper.

• This formation of  thin layer of copper oxide is certainly a chemical reaction.

• Chemical equation :

2Cu + O2 -----> 2CuO