Question:

Which of the following elements is present as the impurity to the maximum extent in the pig iron?

Updated On: Jun 9, 2024
  • Carbon
  • Silicon
  • Phosphorus
  • Manganese
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The Correct Option is A

Solution and Explanation

Pig iron contains about $4\% $ carbon (major impurity) and other impurities $(S, P, Si, Mn)$ in trace amounts.
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Concepts Used:

General Principles and Processes of Isolation of Elements

What are Ores and Minerals? 

Minerals are the naturally occurring, homogeneous inorganic solid substances. They are having a definite chemical composition and crystalline structure, hardness and color. For example, copper pyrite, calamine, etc.

Impurities in an ore are called gauge. The removal of a gauge from the ore is called concentration ore. 

Several steps are involved in the extraction of pure metal from ores. Major steps are as follows –

  • Concentration of the ore
  • Isolation of the metal from its concentrated ore
  • Purification of the metal