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 (X)
(B) Blast of air (X)
(C) Mixture of water and air (X)
(D) Rain of molten lead ()

Answers: In “Imperial Smelting Process” for extraction of zinc, zinc vapour thus produced is quenched in the external condenser by the use of the following   Rain of molten lead.