Chemistry - Metallurgy Question with Solution | TestHub
Column-I | Column-II | Column-III |
|---|---|---|
(a) Zn | (i) Haematite | (p) Roasting followed by reduction with coke. The metal may be purified by fractional distillation |
(b) Cu | (ii) Sphalerite | (q) Roasting of sulphide ore partially and reduction. It is self reduction in a specially designed converter. leaching is also used in hydrometallurgy from low grade ores |
(c) Fe | (iii) Cryolite | (r) Electrolysis of oxide ore dissolved in molten salt. Good source of electricity is required |
(d) Al | (iv) Malachite | (s) Reduction of the oxide with CO and coke in blast furnace at 2170 K. |
.
For the ore same metal ion and anion as in MAGNETITE, CORRECT combination is :
Options:
Answer:
Solution:
Magnetite (Fe₃O₄) contains iron (Fe) as the metal ion and oxide (O²⁻) as the anion. Among the given options, Haematite (i) (Fe₂O₃) is the ore that contains the exact same metal ion (Fe) and anion (O²⁻). Haematite corresponds to the metal Iron (c) in Column-I. Iron is extracted from haematite by reduction of the oxide with CO and coke in a blast furnace (s) in Column-III.
