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 2 of 26.

Swathi said:   2 years ago
Yes, Agree option B is the correct answer.
(5)

Shristy said:   2 years ago
Thanks all for explaining explaining the answer.
(9)

Priya said:   2 years ago
B is the correct answer.
(11)

Anjali mishra said:   2 years ago
Option B is the correct answer.
(12)

Gopal said:   2 years ago
Yes, B is right. I agree.
(25)

Chilu said:   2 years ago
Thanks all for discussing it in detail for good understanding.
(22)

Abhi said:   2 years ago
B is the correct answer.
(17)

AliMaaz said:   3 years ago
The composition of Oxygen (O2) in the air is 21%.

Brass does not react with oxygen and thus decolourization does not occur.
(34)

Theja. said:   3 years ago
Thanks all for giving the explanation of the answers.
(16)

Akki said:   3 years ago
Thanks for explaining the answer.
(12)


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