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:
248 comments Page 2 of 25.

Abhi said:   1 year ago
B is the correct answer.
(17)

AliMaaz said:   1 year ago
The composition of Oxygen (O2) in the air is 21%.

Brass does not react with oxygen and thus decolourization does not occur.
(32)

Theja. said:   2 years ago
Thanks all for giving the explanation of the answers.
(16)

Akki said:   2 years ago
Thanks for explaining the answer.
(12)

Ashish deepanakar said:   2 years ago
Right, Thanks everyone for explaining.
(4)

Anomie said:   2 years ago
Brass does not react with oxygen, nitrogen and carbon dioxide. Because of the presence of Hydrogen sulphide, Brass is discolored in sunlight. Therefore, the answer is B.
(17)

Akhila said:   2 years ago
The Answer is option : A.
(2)

Rathod said:   2 years ago
Agree, option B is right.
(2)

Anshika Sharma said:   2 years ago
I think option B is right.
(2)

Anshika said:   2 years ago
B is correct because brass gets discoloured in the air because of the presence of hydrogen sulphide.
(5)


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