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 12 of 26.
Hina shafiq said:
9 years ago
Yeah, option "b" is correct because brass is a metal and hydrogen sulphide reacts rapidly with metal.
Malaisha said:
9 years ago
No, the correct answer is option A.
Umar Ali said:
9 years ago
If option "b" (Hydrogen Sulphide) is the correct one then please can anybody tell me that, is hydrogen sulphide is present in the air? I think it is not and the correct answer is Co2.
Anilkumar said:
9 years ago
I think the correct answer is carbon-di-oxide.
Patrick said:
9 years ago
Hydro sulphide is a colourless gas when mixed with others.
Nityanand bharti said:
9 years ago
Because hydrogen sulphaide is an acid.
Sch chowdary said:
9 years ago
@Ismail.
You are right because hydrogen also mixed oxygen and carbon dioxide so hydrogen peroxide.
You are right because hydrogen also mixed oxygen and carbon dioxide so hydrogen peroxide.
Ismail said:
9 years ago
Oxygen can also do this process, but in slowly and in low quantity.
Ismail said:
9 years ago
Its because of the reaction between brass and hydrogen sulphyde. It will be discolour the brass.
Dev said:
9 years ago
Because Hydrogen Sulphide is an acid. As because of acid it reacts with brass and discolored the brass.
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