RE: Musing PostsYou are viewing a single comment's thread from:Musing PostsView the full contextahmadkh735 (49) in musing-threads • 6 years ago Brass gets discoloured in air because of the presence of which of the following gases in air??Comment Your Answer Below musing-threads
Definitely Hydrogen Sulfide but Oxygen is the key here. Without oxygen it is no possible
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