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 15 of 26.
Blank22 said:
10 years ago
How hard is that?
Sai mahesh said:
10 years ago
Actually hydrogen sulfide is a oxidizing agent so when the bras is oxidize with hydrogen sulfide its convert to brass oxide.
Like iron is reacts with oxides then its changes iron color. Like that brass converts into colorless.
Like iron is reacts with oxides then its changes iron color. Like that brass converts into colorless.
Pavan said:
1 decade ago
H2s is superconductor also.
Tashad said:
1 decade ago
Because it is homogeneous.
Ranasumit5786@gmail.com said:
1 decade ago
Due to atmospheric pressure.
Pathar jignesh said:
1 decade ago
I can't understand.
Xyz said:
1 decade ago
I think it should have been oxygen. But @Poorna Chandra is right, how will it react ?
K. Poorna chandra rao said:
1 decade ago
Composition of Dry Air.
Substance % by volume.
Nitrogen, N2 78.08.
Oxygen, O2 20.95.
Argon, Ar 0.93.
Carbon dioxide, CO2 0.033.
Neon, Ne 0.0018.
Helium, He 0.00052.
Methane, CH4 0.0002.
Krypton, Kr 0.00011.
Nitrogen (I) oxide, N2O 0.00005.
Hydrogen, H2 0.00005.
Xenon, Xe 0.0000087.
Ozone, O3 0.000001.
In air H2S won't exists directly in air. Then how it will react?
Substance % by volume.
Nitrogen, N2 78.08.
Oxygen, O2 20.95.
Argon, Ar 0.93.
Carbon dioxide, CO2 0.033.
Neon, Ne 0.0018.
Helium, He 0.00052.
Methane, CH4 0.0002.
Krypton, Kr 0.00011.
Nitrogen (I) oxide, N2O 0.00005.
Hydrogen, H2 0.00005.
Xenon, Xe 0.0000087.
Ozone, O3 0.000001.
In air H2S won't exists directly in air. Then how it will react?
K. Poorna chandra rao said:
1 decade ago
Composition of Dry Air.
Substance % by volume.
Nitrogen, N2 78.08.
Oxygen, O2 20.95.
Argon, Ar 0.93.
Carbon dioxide, CO2 0.033.
Neon, Ne 0.0018.
Helium, He 0.00052.
Methane, CH4 0.0002.
Krypton, Kr 0.00011.
Nitrogen (I) oxide, N2O 0.00005.
Hydrogen, H2 0.00005.
Xenon, Xe 0.0000087.
Ozone, O3 0.000001.
In air H2S won't exists directly in air. Then how it will react?
Substance % by volume.
Nitrogen, N2 78.08.
Oxygen, O2 20.95.
Argon, Ar 0.93.
Carbon dioxide, CO2 0.033.
Neon, Ne 0.0018.
Helium, He 0.00052.
Methane, CH4 0.0002.
Krypton, Kr 0.00011.
Nitrogen (I) oxide, N2O 0.00005.
Hydrogen, H2 0.00005.
Xenon, Xe 0.0000087.
Ozone, O3 0.000001.
In air H2S won't exists directly in air. Then how it will react?
Chidi said:
1 decade ago
I never believed it was hydrogen sulphide.
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