mrkjossy
mrkjossy mrkjossy
  • 15-02-2019
  • Biology
contestada

Brass gets discoloured in air because of the presence of which of the following gases in air?
A. Oxygen
B. Hydrogen sulphide
C. Carbon dioxide
D. Nitrogen

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milianijolie
milianijolie milianijolie
  • 15-02-2019
B. Hydrogen sulphide
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