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?
Discussion:
254 comments Page 18 of 26.
Chidi said:
1 decade ago
I never believed it was hydrogen sulphide.
Lauren said:
9 years ago
All these comments only for one questions.
Hina said:
9 years ago
Whats the optional element other than H2S?
Swathi said:
2 years ago
Yes, Agree option B is the correct answer.
(6)
Nandhini said:
10 years ago
Why not carbon-dioxide is correct answer?
Ankush thakur said:
1 decade ago
Presence of air and water in atmosphere.
Nipun said:
9 years ago
According to me, the answer is option A.
OSE said:
7 years ago
I think it is because of the atmosphere.
Nirmaljeet kaur said:
1 decade ago
It is due to oxygen so the answer is A.
Dev said:
9 years ago
Because all other options are gas only.
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