Home
Class 12
CHEMISTRY
Extraction of silver is achieved by ini...

Extraction of silver is achieved by initial complexation of the ore (Argentite) with X followed by reduction with Y. X and Y respectively are

A

`CN^(-)` and `Zn`

B

`CN^(-)` and `Cu`

C

`Cl^(-)` and `Zn`

D

`Br^(-)` and `Zn`

Text Solution

Verified by Experts

The correct Answer is:
A
Complexation step
`Ag_(2)S+CN rarr [Ag(CN)_(2)]^(-)+S^(-2)`
`darr +Zn` Reduction step
`[Zn(CN)_(4)]^(-2)+Ag`
Promotional Banner

Similar Questions

Explore conceptually related problems

In the following reaction X and Y respectively are :

Assertion: Extraction of zinc from sphalerite ore involes the roasting followed by reduction with coke. Reason: Zinc can be extracted by hydrometallurgy.

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.

Metals are extracted from their ores by different methods depending on their position in the activity series Metals which are extracted by heating, electrolysis and by reduction with carbon respectively are

The idea of froth floatation method came from a person X and this method is related to the process Y of ores. X and Y, respectively, are:

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