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

  1. A

    Manganese 

  2. B

    Carbon 

  3. C

    Silicon 

  4. D

    Phosphorus 

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    Solution:

    Pig iron or cast iron contains 3 — 5% carbon and varying amounts of Mn, Si, P and S which makes the iron hard and brittle.

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