Principles of Metallurgy, Class 12 Chemistry NCERT Solutions

1. There will be total 20 MCQ in this test.
2. Please keep a pen and paper ready for rough work but keep your books away.
3. The test will consist of only objective type multiple choice questions requiring students to mouse-click their correct choice of the options against the related question number.
4. No negative marking for incorrect choice.
5. Please click on “Finish the Test” when you want to exit.
6. All the best – Happy Studying

1. Which is insoluble in water ?

Calcium bicarbonate

Sodium carbonate

calcium carbonate

Sodium bicarbonate

Your comments:

Question 1 of 20

2. Name the metal which can be purified by distillation process ?

Copper

Iron

Aluminium

Mercury

Your comments:

Question 2 of 20

3. The electrolytic process used for extaction of aluminium from bauxite is

Ostwald process

Mond process

Hall-Heroult process

Contact process

Your comments:

Question 3 of 20

4. The Baeyer's process is used for leaching of

Iron

Silver

Aluminium

Copper

Your comments:

Question 4 of 20

5. An ore of tin containing FeCrO₄ is concentrated by

Froth floatation

Magnetic separation

Gravity separation

Electrostatic method

Your comments:

Question 5 of 20

6. Which one is a better reducing agent at 983K?

C

CO₂

CO

Al

Your comments:

Question 6 of 20

7. Which process of purification is represented by the following equation ?

Cupellation

Zone refining

Van Arkel

Poling

Your comments:

Question 7 of 20

8. Which of the following metals is obtained by electrometallurgy ?

Ag

Na

Fe

Pb

Your comments:

Question 8 of 20

9. The anode used in Hall-Heroults process of electrolysis is of

Graphite

Silver

Iron

Copper

Your comments:

Question 9 of 20

10. The iron which is obtained from blast furnace is

Hard iron

Cast iron

Pig iron

Wrought iron

Your comments:

Question 10 of 20

11. The salt which is least likely to be found in mineral is

Sulphide

Nitrate

Chloride

Sulphate

Your comments:

Question 11 of 20

12. Nickel is refined by

Zone refining

Mond process

Van Arkel method

Liquation

Your comments:

Question 12 of 20

13. The most commonly used reducing agent in the process of reduction of oxides and sulphide of metals is

Carbon monoxide

Carbon dioxide

Hydrogen sulphide

Sulphur dioxide

Your comments:

Question 13 of 20

14. Ellingham diagrams normally consists of plots of ΔfG vs T for the formation of

Chloride

Oxides

Nitride

Sulphid

Your comments:

Question 14 of 20

15. Zirconium or Titanium is refined by which process

Mond Process

Zone refining

Van Arkel refining

Liquation

Your comments:

Question 15 of 20

16. Copper is mainly extracted from

Copper glance

Copper pyrites

Malachite

Azurite

Your comments:

Question 16 of 20

17. Distillation is used to purify metals with

Low melting point

Low boiling point

High boiling point

High melting point

Your comments:

Question 17 of 20

18. The content of carbon in pig iron is

2%

6%

4%

3%

Your comments:

Question 18 of 20

19. Metal having low melting point such as tin can be purified by

Electrolysis

Distillation

Liquation

Zone refining

Your comments:

Question 19 of 20

20. The purest form of iron is

Pig iron

Cast iron

Wrought iron

None of these

Your comments:

Question 20 of 20

 Loading...