A. evaporation to dryness
B. using chromatography
C. precipitation
D. crystallization
Correct Answer: Option D
D. crystallization
![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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