Extractive Metallurgy MCQ Questions and Answers | Metallurgical Engineering

A. pure carbon

B. pure silicon

C. ferrosilicon

D. ferromanganese

A. bacterial leaching in acidic medium

B. bacterial leaching in alkaline medium

C. bacterial leaching of cuprite ore

D. pressure leaching using ammoniacal solution

A. Iron

B. Lead

C. Tin

D. Silver

A. P-1, Q-2, R-3, S-4

B. P-3, Q-4, R-1, S-2

C. P-4, Q-3, R-2, S-1

D. P-1, Q-2, R-4, S-3

A. 0.5 - 2%

B. 10 - 15%

C. 15 - 35%

D. None of these

A. P-3, Q-4, R-2, S-1

B. P-4, Q-3, R-2, S-1

C. P-3, Q-4, R-1, S-2

D. P-1, Q-2, R-3, S-4

A. iron

B. copper

C. titanium

D. aluminium

A. H₂SO₄

B. NaOH

C. NH₃

D. HCl

A. Carnallite: MgCl₂.KCl.6H₂O

B. Olivine: - MgO₂SiO₄

C. Sarpentine: Mg₃Si₂O₇

D. All are correct

A. Arsenides of heavy metals

B. Antimonides of heavy metals

C. Arsenides and antimonides of heavy metals

D. Iron, cobalt and nickel