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Grade: 12
        
Describe the role of (i) NaCN in the extraction of gold from gold ore. 
4 years ago

Answers : (3)

grenade
2061 Points
							
 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. 
4 years ago
Adarsh Babu S
30 Points
							
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. 
10 months ago
Rahul Prasad
19 Points
							
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.
4 months ago
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