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 25 of 26.
Anjali mishra said:
2 years ago
Option B is the correct answer.
(12)
Priya said:
2 years ago
B is the correct answer.
(11)
Shristy said:
2 years ago
Thanks all for explaining explaining the answer.
(9)
Swathi said:
2 years ago
Yes, Agree option B is the correct answer.
(5)
Vishesh said:
2 years ago
According to me, option B is incorrect because they have asked for gas.
(12)
Bhavika jangid said:
2 years ago
I'm not getting How option B is correct.
Please explain to me.
Please explain to me.
(14)
Mudasir said:
2 years ago
Brass gets discolored due to H2S present in the air.
Brass is made of zinc and copper and copper sulfite and zinc sulfide are colored.
Brass reacts with Oxygen and causes corrosion. But corrosion takes years to discolor.
Brass is made of zinc and copper and copper sulfite and zinc sulfide are colored.
Brass reacts with Oxygen and causes corrosion. But corrosion takes years to discolor.
(15)
Rohini said:
1 year ago
This is because the presence of a mixture of hydrogen and sulphide and brass, which has a very light colour and mixture with hydrogen sulphide leads to non-temperature (hot and cold temperature type). So it becomes discoloured. Hence, brass gets discoloured in the air because of the presence of hydrogen sulphide.
(16)
Anbarasan said:
1 year ago
How? Please explain.
(5)
Saloni kumari said:
10 months ago
I think option B is right.
(1)
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