The metallurgical process in which a metal is obtained in a fused state is called
- Aroasting
- Bcalcination
- Cfroth floatation
- Dsmelting
- ENone of the above/More than one of the above
Show answer and explanation
Correct answer: (d) smelting
Explanation
Smelting extracts a metal from its ore by heating with a reducing agent like coke (carbon), leaving the metal in a fused (molten) state.
Roasting heats sulphide ore in excess air, and calcination heats carbonate ore in limited air to drive off volatiles.
Froth flotation is only an ore-concentration step, not metal extraction.