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Describe the role of (i) NaCN in the extraction of gold from gold ore.

Describe the role of (i) NaCN in the extraction of gold from gold ore. 

Grade:12

4 Answers

grenade
2061 Points
6 years ago
 NaCN in the extraction of gold from gold ore: In the metallurgy of gold, gold metal is leached with a dilute solution of NaCN in the presence of air (for O2). The gold metal is then obtained from the product by displacement reaction. 
Adarsh Babu S
30 Points
3 years ago
NaCN is added to the slurry of gold (mixture with carbon) for separation, It acts as a suppresent/deppresent for the impurities in the ore which is being thoroughly mixed and helps the impurities to settle down. 
Rahul Prasad
19 Points
2 years ago
Gold ore treated with a dilute solution of NaCN while a current of air is continously circulated.As a result gold dissolves by forming respective complex of cynides while the impurities remain unaffected and filltered off.
Rishi Sharma
askIITians Faculty 646 Points
one year ago
Dear Student,
Please find below the solution to your problem.

1) In the metallurgy of gold, gold metal is leached with a dilute solution of NaCN in the presence of air (for O2). The gold metal is then obtained from the product by displacement reaction.
2) it lowers the melting point of the mixture of

Thanks and Regards

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