Question : Which of the following gases is responsible for discolouration of brass in air?
A. hydrogen sulphide
B. water vapour
C. carbon dioxide
D. nitrogen oxide
Question Listed : Hydrogen Sulphide, Metals,
Question : Brass gets discoloured in air because of the presence of which of the following gases in air?
A. Nitrogen
B. Carbon dioxide
C. Hydrogen sulphide
D. Oxygen
Question Listed : Hydrogen Sulphide, Elements, Metals,