MetallurgyHard
Question
Of the following reduction processes, the correct process(es) is/are :
Options
A.B2O3 + Al 
B.
B.B.Cr2O3 + 2Al 
Cr.
Cr.C.TiCl4 + Mg 
Ti.
Ti.D.PbS + PbO 
Pb.
Pb.Solution
β(A) B2O3 + 2Al 
2B + Al2O3 (aluminothermic process-extraction of boron)
(B) Cr2O3 + Al
2Cr + Al2O3 (extraction of chromium)
(C) TiCl4 + 2Mg
Ti + 2MgCl2 (Kroll process-extraction of titanium)
(D) PbS + 2PbO
3Pb + SO2 (extraction of lead)
2B + Al2O3 (aluminothermic process-extraction of boron)(B) Cr2O3 + Al
2Cr + Al2O3 (extraction of chromium)(C) TiCl4 + 2Mg
Ti + 2MgCl2 (Kroll process-extraction of titanium)(D) PbS + 2PbO
3Pb + SO2 (extraction of lead) Create a free account to view solution
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