Multiple Choice Question (MCQ)
Question: Which type solution is used for copper plating removal by immersion method?
A.
Chromic acid and Sulphuric acid
B.
Nitric acid and Hydrochloric acid
C.
Fier salt and Hydrochronic acid
D.
Hydro fluoric acid and Cyanide solution
Correct Answer: Chromic acid and Sulphuric acid