Pick up the correct statement from the following:

Question:
Pick up the correct statement from the following:

1.Blisters in the finished wrought iron, are caused due to the reaction between oxide of iron and carbon

2.The edges of a finished wrought iron, are rough due to red shortage

3.Pig iron (charcoal) is manufactured from magnetic ore (Fe3O4)

4.All the above.

Posted Date:-2021-03-26 00:40:44


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