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how can i separate gold from a mixture of gold and copper filings.

how can i separate gold from a mixture of gold and copper filings.

Grade:10

2 Answers

SHAIK AASIF AHAMED
askIITians Faculty 74 Points
7 years ago
Hello student,
Copper is more electropositive than gold. Thus on pouringsulphuric acidthe copper dissolves and it releases hydrogen and gold remains below.Filter gold out
Thanks and Regards
Shaik Aasif
askIITians faculty
Sougata roy
11 Points
4 years ago
By pouring conc.acid copper fillings will disolve in it to give Hydrogen and gold can be filtered out

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