Practicing Success
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| Which of the following statements is wrong? |
The slag formed during smelting has a low melting point and is heavier than metal Roasting is carried out in the presence of oxygen Calcination of ore is carried out without the presence the oxygen During smelting, flux is used to remove gangue as slag |
| The slag formed during smelting has a low melting point and is heavier than metal |
| Smelting is the process of extraction of a metal from its oxide by reduction with carbon (coke). Alkali metals, alkaline earth metals, etc. cannot be prepared by the reduction of their respective oxides with carbon. The slag formed during smelting has a high melting point and is lighter than the metal. |
