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Which refining process is generally used in the purification of low melting metals ? (1) Chromatographic method (2) Liquation (3) Electrolysis (4) Zone refining

1. Chromatographic method
2. Liquation
3. Electrolysis
4. Zone refining

Correct answer: Liquation

Solution

Liquation is effective for purifying low melting metals because it exploits the difference in melting points, allowing impurities to be separated as the metal melts and flows away.

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