Question

give an example of colour in a chemical reaction​

Answer 1

Answer:

Color changes from blue to light green. Copper reacts with oxygen, H2O and CO2 to give copper carbonate, which changes color from brown to blue or blue green. Rusting, blackening of surfaces of cut vegetables and fruits are other examples of change of color in a chemical reaction.

Answer 2

Answer:

copper reacts with oxygen , H2o and CO2 to give copper Carbonate , which changes from brown to blue or blue green