Maximum impurity in Pig iron is:

1. Mn
2. Phosphorous
3. Graphite
4. Sulphur

Subtopic:  Metallurgy of individual elements |
 70%
From NCERT
AIPMT - 1998
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The 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 |
 69%
From NCERT
AIPMT - 2003
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh