The action of moisture or corrosion turns copper into which colour?
Green
Blue
Yellow
Grey
Green colored copper carbonate is formed by the action of moisture during corrosion.
The elements of sets A , B and C are all colours as follows:
A = { Red , Orange , Yellow , Brown } ,
B = { Blue , Yellow , Green , Brown } ,
C = { Black , Brown , White , Grey }
Then, A U B U C is
When few pieces of iron are dropped into a blue coloured copper sulphate solution, the blue colour fades and eventually turns into light green due to the formation of:
An iron knife kept in blue copper sulphate solution turns the blue solution into light green. Explain?