MetallurgyHard
Question
Which of the following statement(s) is/are true for the extraction of tin from ore cassiterite ?
Options
A.Impurity of wolframite is removed by magnetic separation.
B.The concentrated ore containing 60-70% SnO2 is called as black tin.
C.Tin is obtained by the carbon reduction of SnO2.
D.Anglesite is an another ore of tin.
Solution
(A) Cassiterite ore (SnO2) is separated from magnetic Wolframite (FeWO4 + MnWO4) by magnetic separator.
(B) The purified cassiterite ore containing 60-70% SnO2 is called black tin.
(C) SnO2 + C → SnO + CO↑
(D) Anglesite is PbSO4.
(B) The purified cassiterite ore containing 60-70% SnO2 is called black tin.
(C) SnO2 + C → SnO + CO↑
(D) Anglesite is PbSO4.
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