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Extraction of Iron

Which one of ...

Question

Which one of the following elements constitutes a major impurity in pig iron?

A

Silicon

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B

Oxygen

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C

Sulphur

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D

Graphite

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Solution

The correct option is D Graphite
The major impurity in pig iron is graphite, an allotrope of Carbon (upto 2.5-4%).
Option D is correct.

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