MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
Menu
Grade: 12
        
Describe the role of (i) NaCN in the extraction of gold from gold ore. 
5 years ago

Answers : (4)

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. 
5 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. 
one year 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.
one year ago
Rishi Sharma
askIITians Faculty
505 Points
							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

28 days ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies


Course Features

  • 731 Video Lectures
  • Revision Notes
  • Previous Year Papers
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Test paper with Video Solution


Course Features

  • 54 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details