General Knowledge - General Science - Discussion

Discussion Forum : General Science - Elements and Metals (Q.No. 1)
1.
Brass gets discoloured in air because of the presence of which of the following gases in air?
Oxygen
Hydrogen sulphide
Carbon dioxide
Nitrogen
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
254 comments Page 26 of 26.

Hitesh said:   7 years ago
Option B is right.

Harika said:   5 years ago
Brass is an alloy.

Blank22 said:   10 years ago
How hard is that?

Firoz said:   9 years ago
Oxygen @Sachin.


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