MCQOPTIONS
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| 1. |
In “Imperial Smelting Process” for extraction of zinc, zinc vapour thus produced is quenched in the external condenser by the use of the following _______________________? |
| A. | Jet of water at high pressure |
| B. | Blast of air |
| C. | Mixture of water and air |
| D. | Rain of molten lead |
| Answer» E. | |