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Q. No.Maximum impurity in Pig iron is:
1. Mn
2. Phosphorous
3. Graphite
4. Sulphur
Subtopic: Metallurgy of individual elements |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe method of zone refining of metals is based on the principle of:
| 1. | Greater mobility of the pure metal than that of the impurity |
| 2. | Higher melting point of the impurity than that of the pure metal |
| 3. | Greater noble character of the solid metal than that of the impurity |
| 4. | Greater solubility of the impurity in the molten state than in the solid |
Subtopic: Refining Process |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySelect Chapter Topics:
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Q. No.
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