720Every Day ScienceMedium
Brass gets discoloured in air because of the presence of which of the following gases in air ________ ?
AOxygen
BHydrogen sulphide
CNitrogen
DCarbon dioxide
Correct answer
B. Hydrogen sulphide
Explanation
Hydrogen sulphide is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.