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Which of the following process involves smelting ?A. `Al_(2)O_(3) * 2H_(2)O overset(Delta)to Al_(2)O_(3)+2H_(2)O`B. `Fe_(2)O_(3) +3C overset(Delta)to 2Fe+ 3CO `C. `ZnCO_(3) overset(Delta)to ZnO+CO_2`D. `2PbS+3O_(2) overset(Delta)to2PbO+2SO_(2)` |
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Answer» Correct Answer - B When concentrated ore is mixed with coke and flux it is heated in the presence of air at high temperature , impurities get removed. This proces is called smelting . Actually , it is a reduction process, in which oxide is reduced to metal . Therefore , following process will involve smelting . `Fe_(2)O_(3) +3C overset(Delta)to 2Fe+3CO ` |
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