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Isolation of Elements question

2018 · Shift 2 · Q1
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Isolation of Elements question

2018 · Shift 2 · Q1

JEE AdvancedChemistryIsolation of ElementsNumerical+3 / −1
Galena (an ore) is partially oxidized by passing air through it at high temperature. After some time, the passage of air is stopped, but the heating is continued in a closed furnace such that the contents undergo self-reduction. The weight (in kg) of PbPbPb produced per kg of O2{O_2}O2​ consumed is ‾\underline{\hspace{2cm}}​. (Atomic weights in g mol−1:O=16,S=32,Pb=207g\,mo{l^{ - 1}}:O = 16,S = 32,Pb = 207gmol−1:O=16,S=32,Pb=207)
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