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 9 of 26.
Anshika said:
3 years ago
B is correct because brass gets discoloured in the air because of the presence of hydrogen sulphide.
(5)
Ashish mishra m.pharm said:
1 decade ago
Because in the present of hydrogen sulphite in air cause oxidation reaction hence colour is change.
Sra1 said:
1 decade ago
Oxygen is correct because it easily reacts with corban compounds due to that it changes its colour.
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.
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.
Akolade Alabi said:
7 years ago
It's B because there have been chemical reactions towards the two objects which makes it a mixture.
Nomit said:
1 decade ago
I think B is the correct answer because H2S affect both silver and brass due to chemical reaction.
Chemistry begineer said:
10 years ago
Different substance have different reactivity, so hydrogen sulphide is it's corroded form. Maybe.
Ismail said:
9 years ago
Its because of the reaction between brass and hydrogen sulphyde. It will be discolour the brass.
Ananya thakur said:
1 decade ago
I am very intrested in science but I don't understand anything but I think option B is correct.
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