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 7 of 26.
Priscilla said:
7 years ago
I think option A is the right answer.
Adarsh said:
7 years ago
I think the correct answer is A.
MADEIA said:
7 years ago
Option B is correct. I agree with the given answer.
Archangel Micheal said:
8 years ago
For me, the correct answer is hydrogen sulfide because as far as I know it is acidic and poisonous.
Hitesh said:
8 years ago
In my opinion option A is correct as we see in fruits such as apples and bananas they get brown colour in coming in contact with air and because of oxygen it is.
Nasir said:
8 years ago
Option B is correct.
Debiprasad parida said:
8 years ago
Option B is correct.
AVSK RAJPUT said:
8 years ago
It can never possible, with hydrogen sulphide. If brass gets rusted then, first of all, it must be break down into hydrogen and sulphur, but oxygen can be found in free with maximum no of molecules hence answer should be A".
Jayanth said:
8 years ago
It is a mixture of cu+zn.
Agyare Isaac said:
8 years ago
The right answer is option B. I agree.
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