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 11 of 26.
Shashikant said:
1 decade ago
As brass is metal made up from copper and zink it gets rusted from h2s present in air.
Shrinu said:
1 decade ago
It is B presence of hydrogen sulphide in air and reacts oxidation then colour changes.
Xyz said:
1 decade ago
I think it should have been oxygen. But @Poorna Chandra is right, how will it react ?
Sahil Khare said:
1 decade ago
Hydrogen gas gives a smell of rotten eggs and turns lead acetate paper silvery back.
Nag3 said:
1 decade ago
It is H2 sulfide because brass contain them since it is an alloy made of it and tin.
Anupriya said:
8 years ago
I think the correct option is oxygen. As brass gets react with oxygen and get rust.
Ankit said:
1 decade ago
Brass is a alloy of Cu and Zn so it can decolourise easily with hydrogen sulphide.
Ameya B said:
9 years ago
I think its option (A) as the content of hydrogen sulphide in the air is almost 0.
Yashasvi said:
1 decade ago
Hydro sulphide is a colourless gas and if mixed with others, will get colourless.
Supreem said:
1 decade ago
Why brass discolored in the presence of hydrogen sulphide?
Please describe this?
Please describe this?
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