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 2 of 26.
Anjali mishra said:
2 years ago
Option B is the correct answer.
(12)
Vishesh said:
2 years ago
According to me, option B is incorrect because they have asked for gas.
(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)
Maggy said:
9 months ago
Agree, Option B is the correct answer.
(7)
Anshika said:
3 years ago
B is correct because brass gets discoloured in the air because of the presence of hydrogen sulphide.
(5)
Swathi said:
2 years ago
Yes, Agree option B is the correct answer.
(5)
Anbarasan said:
1 year ago
How? Please explain.
(5)
Ashish deepanakar said:
3 years ago
Right, Thanks everyone for explaining.
(4)
Ananya Kumari said:
6 months ago
Brass gets discoloured in the air primarily due to the presence of hydrogen sulfide (H₂S).
When hydrogen sulfide reacts with the copper in brass, it forms copper sulfide, which appears as a dark tarnish or discolouration on the surface of the brass.
When hydrogen sulfide reacts with the copper in brass, it forms copper sulfide, which appears as a dark tarnish or discolouration on the surface of the brass.
(4)
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