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In the cyanide extraction process of sil...

In the cyanide extraction process of silver from argentite ore, the oxidising and reducing agents are

A

`O_(2)` and CO respectively

B

`O_(2)` and Zn dust respectively

C

`HNO_(3)` and Zn dust respectively

D

`HNO_(3)` and CO respectively

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Statement-1:In cyanide process for the extraction of gold and silver from their natives, ores, the cuanide solution acts as a reducing agent to reduce the gold and siver compound present in the ores into the metallic states. Statement-2:In the extraction of gold and silver, the cyanide solution acts as complexing ragent in the presence of air and form their respective soluble complexes.