Published by:
CGP EDU Academic Team
Published on: August 14, 2026
In the process of extraction of gold,
Roasted gold ore 
Identify the complexes [ X ] and [ Y ]
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
In the presence of water and oxygen, the roasted gold ore interacts with the cyanide ion to
generate the dicyano complex [X].
Treatment with zinc causes gold to be displaced from the dicyano complex. The following reaction is obtained as the result, Roasted gold ore 
Hence Correct option is a
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