Metallurgy hard

Metallurgy Quiz (Hard)

1. Which metal is extracted by the Kroll process?

a) Iron b) Copper c) Titanium

2. The process of extracting metal from the ore by heating beyond its melting point and combining it with carbon is called:

a) Electrolysis b) Smelting c) Calcination

3. What is the name of the process used for the purification of bauxite?

a) Hall-Héroult process b) Bayer's process c) Mond process

4. Which metal is extracted from sea-water?

a) Sodium b) Magnesium c) Potassium

5. Which process involves the conversion of ore into metal oxide using a suitable reducing agent?

a) Roasting b) Calcination c) Reduction

6. The process of heating a metal ore in the presence of a reducing agent to obtain the metal is called:

a) Smelting b) Roasting c) Refining

7. Which metal is obtained from its ore by the process of Mond process?

a) Copper b) Silver c) Nickel

8. What is the name of the process of extraction of metals from ores using microbes?

a) Leaching b) Electrolysis c) Bioleaching

9. The process of extracting metal from the ore by heating beyond its melting point and combining it with carbon is called:

a) Electrolysis b) Smelting c) Calcination

10. Which metal is obtained from its ore by the process of liquation?

a) Lead b) Aluminium c) Zinc