Question:
The removal of impurities from lead metal is done through
The removal of impurities from lead metal is done through
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Parkes = Lead Refining. Think of "Parkes" as "parking" the silver in a zinc crust.
Updated On: Jul 4, 2026
- Parkes process
- Poling process
- Zone refining
- amalgamation
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The Correct Option is A
Solution and Explanation
Step 1: Concept Lead bullion obtained from the furnace contains various impurities, notably silver and gold.
Step 2: Meaning Refined lead must be "desilverized" to be commercially valuable.
Step 3: Analysis The Parkes process uses the principle of differential solubility, where zinc is added to molten lead to extract precious metals into a zinc crust.
Step 4: Conclusion Therefore, the Parkes process is the designated method for the refining and removal of impurities from lead. Final Answer: (A)
Step 2: Meaning Refined lead must be "desilverized" to be commercially valuable.
Step 3: Analysis The Parkes process uses the principle of differential solubility, where zinc is added to molten lead to extract precious metals into a zinc crust.
Step 4: Conclusion Therefore, the Parkes process is the designated method for the refining and removal of impurities from lead. Final Answer: (A)
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