ICSE Class 10 Metallurgy MCQ For Semester 2

ICSE Class 10 Metallurgy MCQ For Semester 2 2022

ICSE Class 10 Metallurgy MCQ For Revision

ICSE Class 10 Metallurgy MCQ For Revision 2022

ICSE Class 10 Metallurgy MCQ Table

What Is Metallurgy And Its Types?

The science of metallurgy is further subdivided into two broad categories: chemical metallurgy and physical metallurgy. Chemical metallurgy is chiefly concerned with the reduction and oxidation of metals, and the chemical performance of metals.

What Is Metallurgy And Why Is It Important?

Metallurgy concerning extraction of metal from ore or metal compounds is very important industry that supplies metallatic material with special properties for applications in many fields.

What Are Metallurgical Properties?

The metallurgical properties include such micro- and macro-structural characteristics as the grain size and grain flow patterns. ... By contrast, in the solid forged parts, there is a gradient in the micro- and macro-structural properties from the surface to the internal areas.

What Is The Principle Of Metallurgy?

scientific approach to metallurgy involves chemical and physical metallurgy. Chemical metallurgy deals with the domain of the reduction and oxidation of metals. It is the science of obtaining metals from their ores, and of the consideration of the reactions of metals derived through a chemical approach.

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ICSE Class 10 All Subject MCQ

• CHEMISTRY
• BIOLOGY
• MATHS
• PHYSICS
• HISTORY & CIVICS

ICSE Class 10 Metallurgy MCQ HERE

1. Which one of the following is not an ore of aluminium?

(a)    Bauxite

(b)    Corundum

(c)    Epsomite

(d)    Cryolite

2. Aluminium metal is purified by:

(a)    Hoo;e’s process

(b)    Hall’s process

(c)    Serpeck’s process

(d)    Baeyer’s process

3. In the alumino – thermite process, Al acts as

(a)    An oxidising agent

(b)    A flux

(c)    Solder

(d)    A reducing agent

4. Which of the following reaction forms the basis of Goldschmith alumino – thermite process?

(a)    2Al + N₂
® 2AIN

(b)    2Al + 3Cl₂
® 2AlCl₃

(c)    2Al + 6HCl ® 2AlCl₃ + 3H₂

(d)    2Al + Fe₂O₃
® Al₂O₃ + 2Fe

5. The function of fluorspar in the electrolytic reduction of alumina dissolved in fused cryolite (Na₃AlF₆) is:

(a)    As a catalyst

(b)    To lower the temperature of the melt and to make fused mixture very conducting

(c)    To decrease the rate of oxidation of carbon at the anode

(d)    None of the above

6. Copper is extracted from sulphide ore using the method

(a)    Carbon reduction

(b)    Carbon monoxide reduction

(c)    Auto reduction

(d)    None of these

7. In the extraction of copper from copper pyrites, iron is removed as

(a)    FeSO₄

(b)    FeSiO₃

(c)    Fe₃O₄

(d)    Fe₂O₃

8. Froth floatation process is used for the concentration of the ore of

(a)    Fe

(b)    Al

(c)    Cr

(d)    Cu

9. In the extraction of copper, metal is formed in the Bassemer converted due to reaction

(a)    Cu₂S + 2Cu₂O ® 6Cu + SO₂

(b)    Cu₂S + 2Cu + S

(c)    Fe + Cu₂O ® 6Cu + FeO

(d)    2Cu₂O ® 4Cu + O₂

10. High purity copper metal is obtained by

(a)    Carbon reduction

(b)    Hydrogen reduction

(c)    Electrolytic reduction

(d)    Thermite reduction

11. Silica is added to roasted copper ore during extraction in order to remove

(a)    Cuprous sulphide

(b)    Ferrous oxide

(c)    Ferrous sulphide

(d)    Cuprous oxide

12. In the electrolytic refining of copper, Ag and Au are found

(a)    On anode

(b)    In electrolyte solution

(c)    In anode mud

(d)    In cathode mud

13. Blister copper is

(a)    Pure copper

(b)    Ore of copper

(c)    Alloy of copper

(d)    Impure copper

14. Silver can be separated from lead by

(a)    Fractional crystallization

(b)    Amalgamation

(c)    Cupellation

(d)    Addition of zinc (Parke’s method)

15. Percentage of silver in the alloy german silver is

(a)    2.5%

(b)    1.5%

(c)    10 %

(d)    0%

16. AgCl on fusion with sodium carbonate, gives

(a)    Ag₂CO₃

(b)    Ag₂O

(c)    Ag

(d)    Ag₂C₂

17. An alloy which does not contain copper is

(a)    Bronze

(b)    Magnalium

(c)    Brass

(d)    Bell metal

18. Cinnabar is the ore of

(a)    Zn

(b)    Cd

(c)    Hg

(d)    Ag

19. Heamatite ore is concentrated by

(a)    Gravity separation method

(b)    Forth floatation

(c)    Amalgamation

(d)    Hand picking

20. The material mixed before ore is subjected for smelting in the extraction of iron are

(a)    Cake and silica

(b)    Coke and limestone

(c)    Limestone and silica

(d)    Coke, limestone and silika

Answer keys:

1.    c    2.    a    3.    d    4.    d    5.    b

6.    c    7.    b    8.    d    9.    a    10.    c

11.    b    12.    c    13.    d    14.    d    15.    d

16.    c    17.    b    18.    c    19.    a    20.    b

ICSE Class 10 Metallurgy MCQ

ICSE Class 10 Metallurgy MCQ