Single Choice

From argentite $$( Ag_2S) $$ ore the method used in obtaining metallic silver is

Afused mixture of $$ Ag_2S$$ and $$KCl$$ is electrolysed
B$$ Ag_2S$$ is reduced with $$CO$$
C$$ Ag_2S $$ is roasted to $$ Ag_2O $$ which is reduced with carbon
Dtreating argentite with $$ NaCN $$ solution followed by metal displacement with zinc
Correct Answer

Solution

From argentite $$( Ag_2S) ,$$ ore the method used in obtaining metallic silver is by treating argentite with $$ NaCN $$ solution followed by metal displacement with zinc.

$$ Ag_2S + 4Na CN \rightarrow 2Na [Ag (CN)_2] + Na_2 S $$

$$ 2 Na [Ag (CN)_2 ] + Zn \rightarrow Na_2[ Zn (CN)_4] + 2Ag $$

SIMILAR QUESTIONS

Metallurgy

The decomposition of silver chloride is catalysed by:

Metallurgy

The anode mud in the electrolyte refining of silver contains :

Metallurgy

When 1 mol of pure $$Ag_2CO_3$$ is strongly heated, calculate the weight of residue obtained in gm.

Metallurgy

Name the chief ore of silver. Describe with chemical equations the extraction of silver from this ore.

Metallurgy

Extraction of silver from commercial lead is possible by

Metallurgy

An ore contains 1.34% of the mineral argentite, Ag2S by mass. How many gram of this ore would have to be processed in order to obtain 1.00g of pure solid silver, Ag?

Metallurgy

Identify the substance underlined, in each of the following cases: The electrolyte used for electroplating an article with silver.

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