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 21 of 26.
OSE said:
7 years ago
I think it is because of the atmosphere.
Rajkumar chakraborty said:
7 years ago
"B" is right. I agree with the given answer.
Anomie said:
7 years ago
Brass gets discolored in air because of the presence of Hydrogen sulphide.
It is because the presence of a mixture of hydrogen and sulphide and brass is a type of thing which has a colour very light and the mixture is non-temperature (hot and cold type of temperature) so it gets discoloured.
It is because the presence of a mixture of hydrogen and sulphide and brass is a type of thing which has a colour very light and the mixture is non-temperature (hot and cold type of temperature) so it gets discoloured.
Hitesh said:
7 years ago
Option B is right.
Maya said:
7 years ago
The hydrogen sulphide is very good compound.
Viswanadh said:
6 years ago
Brass is a type of alloy which is made with Cu and Zn. H2S gas react with Cu will give CuS precipitate which is yellow colour.
Bijoy patra said:
6 years ago
Brass gets discolored in air because of the presence of Hydrogen sulphide. Reason: It is because the presence of a mixture of hydrogen and sulphide and brass is a type of thing which has a colour very light and the mixture is non-temperature (a hot and cold type of temperature) so it gets discoloured.
AHAMED HALITH said:
6 years ago
Yes, H2S is the correct one because sulphide gas is poisonous and if it is combine with H it becomes poisonous acid so it makes brass discoloured.
Suman said:
6 years ago
Because H2S is a bleaching agent.
Surabhichaurasia said:
6 years ago
Because H2S is more reactive.
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