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
View Solution FreeMore Metallurgy Questions
The incorrect statement is :...In the extraction of copper from its sulphide ore, the metal is formed by reduction of Cu2O with :...Which of the following employ(s) thermal decomposition of volatile iodide compounds?...Calcium silicate (slag) formed in the slag formation zone in extraction of iron from haematite ore :...Which process of purification is represented by the following equation :Ti (Impure) + 2I2 $\overset{\quad 250ºC\quad}{\r...