Chemistry - Metallurgy Question with Solution | TestHub
ChemistryMetallurgyExtraction of MetalsMedium2 minQB
ChemistryMediummultiple choice
Which of the following statement(s) is/are CORRECT related to extraction of "Tin" from cassiterite (tinstone)
Options:(select one or more)
Answer:
A, B, C
Solution:
(A) Correct: Magnetic iron tungstate (FeWO₄) impurity is removed from cassiterite by magnetic separation.
(B) Correct: During smelting, SiO₂ reacts with CaO to form calcium silicate (CaSiO₃) slag, removing silica impurity.
(C) Correct: SnO₂ is reduced by carbon (coke) at high temperature to obtain tin metal.
(D) Incorrect: Tin is not refined by the Hall–Héroult process; that process is used for aluminum extraction.
Answer: (A), (B) and (C)
Stream:JEESubject:ChemistryTopic:MetallurgySubtopic:Extraction of Metals
⏱ 2mℹ️ Source: QB
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