Question:

Which is the purest form of iron?

Updated On: Aug 23, 2023
  • Pig iron
  • Cast iron
  • Wrought iron
  • Steel
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The Correct Option is C

Solution and Explanation

Wrought iron is purest form of iron. It contain 99.5% iron, 0.25% carbon and 0.25% other impurities of S, P, Si etc.
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Concepts Used:

Refining

Refining is an industrial process of reducing the impurities of a substance. In simpler terms, refining is a process of purification of metals to remove the impurities from them to obtain the metals in the purest form.

Refining Methods of Metals

There are various methods used in the refining process of metals. They are listed below-

  • Distillation
  • Liquidation
  • Poling
  • Oxidation
  • Electrolytic refining
  • Zone refining
  • Vapour phase refining
  • Van-Arkel method
  • Chromatographic method

Check: Zone Refining