In "Imperial Smelting Process" for extraction of zinc, zinc vapour thus produced is quenched in the external condenser by the use of the following _______________________?
Correct answer: B. Rain of molten lead
- A. Jet of water at high pressure
- B. Rain of molten lead
- C. Mixture of water and air
- D. Blast of air
Explanation
In the Imperial Smelting Process, zinc vapour is condensed by contact with a rain of molten lead in the external condenser. Lead dissolves the condensed zinc and prevents its reoxidation.
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