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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.

Text Solution

Verified by Experts

The correct Answer is:
B
` O_ 2 ` oxidises `Na_ 2 S ` formed in the reaction to ` Na_2 SO_ 4 ` and Zn reduces ` Ag^(+) ` to metallic Ag.
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Ibn the cyanide extraction process of silver form aragetite are ,oxidizing and reduction agents used are action .

There are following extraction process of silver but not:

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.

During extraction of silver from cyanide process , which of the following is formed ?

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