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| 1. |
Ultra purification of a metal is done by : |
| Answer» <html><body><p> Zone melting</p><br/><br/><p>When metals are required in a ultra pure state, the zone refining <a href="https://interviewquestions.tuteehub.com/tag/method-559432" style="font-weight:bold;" target="_blank" title="Click to know more about METHOD">METHOD</a> is <a href="https://interviewquestions.tuteehub.com/tag/used-2318798" style="font-weight:bold;" target="_blank" title="Click to know more about USED">USED</a>. The principle-employed states that the impurities, which <a href="https://interviewquestions.tuteehub.com/tag/lower-1080637" style="font-weight:bold;" target="_blank" title="Click to know more about LOWER">LOWER</a> the melting point of a <a href="https://interviewquestions.tuteehub.com/tag/metal-1094457" style="font-weight:bold;" target="_blank" title="Click to know more about METAL">METAL</a> remain preferentially dissolved in the liquid phase and purer metal will emerge in the solid phase.</p></body></html> | |