Chemistry - Metallurgy Question with Solution | TestHub

ChemistryMetallurgyExtraction of MetalsMedium2 minQB

ChemistryMediummultiple choice

The correct statement(s) related to the metal extraction processes is(are)

Answer:

A, C, D

Solution:

(A) $PbS + 2 PbO \to 3 Pb + SO_{2}$ (self reduction)

(B) Silica is added to remove impurity of Fe in the form of $slag FeSiO_{3}$

(C) $CuFeS_{2}$ ore is partially oxidized first by roasting and then self reduction of Cu takes place to produce blister copper.

(D) $4 Na [Au (CN_{2}) 1 \oplus] Reducung Agent 2 Zn ⟶ 2 Na_{2} (Zn (CN)_{4}) + 4 Au 0$

Stream:JEESubject:ChemistryTopic:MetallurgySubtopic:Extraction of Metals

⏱ 2mℹ️ Source: QB

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