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NCERT Class 12 Chemistry Notes: Principal and Processes of Isolation of Elements
By MSIPATNA27 Nov 2019
Earth crust is the source of many elements. Out of these elements, 70%...ant metal of earth crust and iron come...moisture and CO2 of the air. These e...reactive elements such as F,...ce. Thus, isolation of crude...ten metal and is lighter than...ZnO above 1270 K. Refinin...s method. Elements of very h...
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