Distillation; either simple or fractional macroscale depending on how far apart the boiling points are.
Answer:
E) None of the above
Explanation:
Metals react according to the activity series, thta is organized with the leats metals in in the bottom and the most reactive metals in the top. Most reactive metals displace less reactive metals in the compounds they are found.
in this series, Gold, Silver and Mercury are below Copper, this is, they are less reactive than Cu. this means none of them can displace it from its compounds.
Volatility is a chemical property. The other ones are chemical properties
The flame goes an Orange-Red colour.