JEE Main Chemistry question

Chemistry General Principles and Processes of Isolation of Elements (Metallurgy)JEE Main

Not in JEE Main or NEET syllabus

Extraction of lead by reduction methods is done by

(A)Adding more galena into reverberatory furnace
(B)Adding more galena and coke into the reverberatory furnace
(C)Self reduction of oxide from sulphide present in the furnaceCorrect
(D)Adding more lead sulphate into reverberatory furnace

Answer: (C)

Solution

In the reverberatory furnace, part of the galena () is first roasted to , and this oxide is then reduced by the remaining unroasted itself in a self-reduction (auto-reduction) step: $2PbO + PbS → 3Pb +

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Question ID VK-138378