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Statement-1:In cyanide process for the e...

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

A

Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-1

B

Statement-1 is True, Statement-2 is True, Statement-2 is
NOT a correct explanation for Statement-1

C

Statement-1 is True, Statement-2 is False.

D

Statement-1 is False, Statement-2 is True.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze both statements regarding the cyanide process for the extraction of gold and silver. ### Step-by-Step Solution: 1. **Understanding Statement 1**: - The first statement claims that in the cyanide process, the cyanide solution acts as a reducing agent to reduce gold and silver compounds present in the ores into their metallic states. - In the cyanide process, the ores of gold and silver are treated with a cyanide solution, which does not act as a reducing agent. Instead, it facilitates the formation of soluble complexes of gold and silver when air (oxygen) is present. 2. **Understanding Statement 2**: - The second statement claims that in the extraction of gold and silver, the cyanide solution acts as a complexing reagent in the presence of air and forms their respective soluble complexes. - This statement is accurate. The cyanide ions (CN⁻) react with gold (Au) and silver (Ag) in the presence of oxygen to form soluble complexes such as Na₃Au(CN)₂ and Na₄Ag(CN)₂. 3. **Conclusion**: - Based on the analysis, Statement 1 is **false** because cyanide does not reduce the metal compounds; it forms complexes instead. - Statement 2 is **true** because cyanide acts as a complexing agent in the presence of air. ### Final Answer: - Statement 1: False - Statement 2: True

To solve the question, we need to analyze both statements regarding the cyanide process for the extraction of gold and silver. ### Step-by-Step Solution: 1. **Understanding Statement 1**: - The first statement claims that in the cyanide process, the cyanide solution acts as a reducing agent to reduce gold and silver compounds present in the ores into their metallic states. - In the cyanide process, the ores of gold and silver are treated with a cyanide solution, which does not act as a reducing agent. Instead, it facilitates the formation of soluble complexes of gold and silver when air (oxygen) is present. ...
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