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 1 of 25.

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)

Gopal said:   1 year ago
Yes, B is right. I agree.
(23)

Chilu said:   1 year ago
Thanks all for discussing it in detail for good understanding.
(21)

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)

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

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)

Anjali mishra said:   10 months ago
Option B is the correct answer.
(11)

Priya said:   10 months ago
B is the correct answer.
(11)

Bhavika jangid said:   5 months ago
I'm not getting How option B is correct.

Please explain to me.
(9)


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