Which method is used for the purification of copper from ...
Which method is used for the purification of copper from its ore?
distillation
electrochemical
electrolysis
neutralization
reduction
Correct answer is C
No explanation has been provided for this answer.
The four classes of hydrocarbons are? ...
An example of aromatic compound is? ...
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The complex salt formed when aluminium dissolves in sodium hydroxide solution is ...