In "Imperial Smelting Process" for extraction of zinc, zinc vapour thu – 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.

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