Cupellation and Poling

Q. The method of zone refining of metals is based on the principle of :

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Q.

Zone refining is a method to obtain:

1. Moderately pure metals

2. Ultrapure Al

3. Ultrapure metals

4. ultrapure oxides

Q.

Zone refining often yields 80-85% pure metal – True or False?

1. True

2. False

Q. Zone refining method often yields 80-85% of pure metal

1. True
2. False