MCQs on Metallurgy class 10 chapter Metals and Non metals

Here are multiple-choice questions (MCQs) related to metallurgy Class 10:

1. What is the primary purpose of metallurgy?

   a) To study the properties of metals

   b) To extract and process metals from ores

   c) To create alloys from pure metals

   d) To manufacture metal products

2. Which of the following is NOT a step in metallurgy?

   a) Ore extraction

   b) Refining

   c) Alloying

   d) Fermentation

3. What is the first step in the extraction of metals from ores?

   a) Concentration

   b) Roasting

   c) Smelting

   d) Crushing and grinding

4. Which of the following is a common reducing agent used in smelting?

   a) Oxygen

   b) Carbon dioxide

   c) Carbon (coke)

   d) Hydrogen

5. What is the purpose of roasting in metallurgy?

   a) To remove volatile impurities

   b) To alloy metals

   c) To purify the metal

   d) To shape the metal

6. Which process is used to remove impurities from a metal after smelting?

   a) Casting

   b) Forging

   c) Refining

   d) Quenching

7. What is the result of combining iron with carbon in metallurgy?

   a) Aluminum

   b) Copper

   c) Steel

   d) Gold

8. Which step in metallurgy involves subjecting the metal to high temperatures to modify its properties?

   a) Refining

   b) Heat treatment

   c) Concentration

   d) Alloying

9. What is the purpose of quality control in metallurgy?

   a) To extract metals from ores

   b) To refine metals

   c) To ensure the final product meets standards

   d) To create alloys

10. In metallurgy, what is the final step after shaping and forming the metal?

    a) Refining

    b) Heat treatment

    c) Application

    d) Roasting

Answers:

1. b) To extract and process metals from ores

2. d) Fermentation

3. d) Crushing and grinding

4. c) Carbon (coke)

5. a) To remove volatile impurities

6. c) Refining

7. c) Steel

8. b) Heat treatment

9. c) To ensure the final product meets standards

10. c) Application

Here are some additional multiple-choice questions (MCQs) related to metallurgy:

11. Which natural resources are the primary source of metallic ores in metallurgy?

    a) Fossil fuels

    b) Water bodies

    c) Earth's crust

    d) Atmosphere

12. What is the process called when metals react with oxygen to form metal oxides?

    a) Reduction

    b) Oxidation

    c) Refining

    d) Alloying

13. What is the term for the ability of metals to be drawn into wires?

    a) Malleability

    b) Ductility

    c) Conductivity

    d) Sonorousness

14. Which of the following is NOT a common non-ferrous metal?

    a) Copper

    b) Iron

    c) Aluminum

    d) Lead

15. What type of alloy is created when two or more metals are mixed together?

    a) Homogeneous alloy

    b) Composite alloy

    c) Heterogeneous alloy

    d) Impure alloy

16. Which metal is commonly used for electrical wiring due to its excellent conductivity?

    a) Aluminum

    b) Copper

    c) Iron

    d) Zinc

17. What is the process called when metals are heated and slowly cooled to relieve internal stresses and increase toughness?

    a) Casting

    b) Annealing

    c) Forging

    d) Smelting

18. Which property of metals makes them suitable for applications in musical instruments?

    a) Conductivity

    b) Sonorousness

    c) Ductility

    d) Malleability

19. Which metal is commonly used in aircraft construction due to its lightweight and corrosion-resistant properties?

    a) Iron

    b) Lead

    c) Aluminum

    d) Gold

20. In metallurgy, what is the term for the process of removing impurities by using a chemical reaction with a flux?

    a) Smelting

    b) Refining

    c) Quenching

    d) Alloying

Answers:

11. c) Earth's crust

12. b) Oxidation

13. b) Ductility

14. b) Iron

15. c) Heterogeneous alloy

16. b) Copper

17. b) Annealing

18. b) Sonorousness

19. c) Aluminum

20. b) Refining