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Question
Which is/are the correct method-metal matching for refining of crude metals?
Which is/are the correct method-metal matching for refining of crude metals?
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Solution
The correct options are
A Distillation: zinc and mercury
B Liquation : tin
C Van Arkel : zirconium
A) Distillation is a process of separating the component substances from a liquid mixture by selective evaporation and condensation. Distillation may result in essentially complete separation (nearly pure components), or it may be a partial separation that increases the concentration of selected components of the mixture. Ex: zinc and mercury are distilled by the fractional distillation process.
B) Liquation is a metallurgical method for separating metals from an ore or alloy. The material must be heated until one of the metals starts to melt and drain away from the other and can be collected. This method was largely used to remove lead-containing silver from copper, but it can also be used to remove antimony from ore and refine tin (stannum).
C) Van Arkel process was the first industrial process for the commercial production of pure ductile metallic Zirconium.
D) The Mond process, sometimes known as the carbonyl process, is a technique created by Ludwig Mond in 1890 to extract and purify nickel, but not lead.
Hence options A,B & C are correct.
A Distillation: zinc and mercury
B Liquation : tin
C Van Arkel : zirconium
A) Distillation is a process of separating the component substances from a liquid mixture by selective evaporation and condensation. Distillation may result in essentially complete separation (nearly pure components), or it may be a partial separation that increases the concentration of selected components of the mixture. Ex: zinc and mercury are distilled by the fractional distillation process.
B) Liquation is a metallurgical method for separating metals from an ore or alloy. The material must be heated until one of the metals starts to melt and drain away from the other and can be collected. This method was largely used to remove lead-containing silver from copper, but it can also be used to remove antimony from ore and refine tin (stannum).
C) Van Arkel process was the first industrial process for the commercial production of pure ductile metallic Zirconium.
D) The Mond process, sometimes known as the carbonyl process, is a technique created by Ludwig Mond in 1890 to extract and purify nickel, but not lead.
Hence options A,B & C are correct.
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