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Question

Electrometallurgical process is used to extract


A

Na

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B

Ag

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C

Pb

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D

Fe

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Solution

The correct option is A

Na


The explanation for the correct option

(A) Na

Electrometallurgical process

  • Electrometallurgy is a method that is used to extract metal by the use of electrical energy to reduce metals from their molten state by electrolysis.
  • The reduction of metals is carried out by electrolysis.
  • Na is highly reactive so it cannot be extracted by reduction withC,CO, etc. It may form complex during reduction.
  • So, SodiumNa is extracted by the electrometallurgical process.

Hence, Option (A) Nais correct.

The explanation for the incorrect options

(B) Ag

  • Silver(Ag) is extracted by the smelting and chemical leaching process.
  • This process is commonly known as Mac Arthur and Forrest's Cyanide process.

(C) Pb

  • Lead(Pb) is extracted by Smelting in a Reverberatory furnace.
  • Lead is subjected to reduction with carbon.

(D) Fe

  • Iron(Fe) is extracted by using a blast furnace.
  • Iron ore is mixed with limestone and coke.

Therefore, Option (A) Nais correct.


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