A. carbon (IV) oxide
B. nitrogen
C. oxygen
D. water vapour
E. noble gases
Correct Answer:
Option C – oxygen
When air is passed through a heated tube containing finely divided copper, the component that is absorbed in the process is?
![What mass of copper would be formed when a current of 10.0 A is passed through a solution of CuSO4 for 1 hour? [Cu = 63.5; 1F = 96500C]](https://erudites.ng/wp-content/plugins/contextual-related-posts/default.png "What mass of copper would be formed when a current of 10.0 A is passed through a solution of CuSO4 for 1 hour? [Cu = 63.5; 1F = 96500C]")
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