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  4. oxygen gas is collected in the laboratory by___________ A.upward displacement of air B.upward displacement of...

oxygen gas is collected in the laboratory by___________ A.upward displacement of air B.upward displacement of...

oxygen gas is collected in the laboratory by___________
A.upward displacement of air
B.upward displacement of water
C.downward displacement of water
D.using a gas layer?
In Chemistry
3 Answers Available
Asked by anabelle on 16th November, 2021
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