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Ms. Anjana Bindlish
's Polls
GK
Brass gets discoloured in air because of the presence of which of the following gases in air?
Oxygen
1 vote (33%)
Oxygen
Hydrogen sulphide
2 votes (66%)
Hydrogen sulphide
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3 votes
| 26 views
(200 symbols max)
Wolmal
(256 symbols max)
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