MEDIUM

Earn 100

Draw a neat diagram of the reverberatory furnace and label it neatly?

Important Questions on General Principles and Processes of Isolation of Metals (Metallurgy)

HARD

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Reduction of Metal Oxides to Metals

What is a Furnace? Draw reverberatory furnace and label its parts.

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Reduction of Metal Oxides to Metals

Which among following processes occurs at

1500 K

in blast furnace for extraction of iron

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Reduction of Metal Oxides to Metals

During the extraction of copper, the impurity

(FeS)

is removed as slag by mixing the contaminated copper ore with silica and coke. The molecular formula of slag is

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Reduction of Metal Oxides to Metals

The most common method, used for extraction of metals from oxide ores involves

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Reduction of Metal Oxides to Metals

Extraction of copper by smelting uses silica as an additive to remove.

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Reduction of Metal Oxides to Metals

Which of the following statements is correct during the extraction of copper?

MEDIUM

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Reduction of Metal Oxides to Metals

Identify the auto reduction reactions from the following:

$a)$ ${Fe}_{3} O_{4} + 4 CO ⟶ 3 Fe + 4 {CO}_{2}$

$b)$ ${Cu}_{2} O + \frac{1}{2} {Cu}_{2} S ⟶ 3 Cu + \frac{1}{2} {SO}_{2}$

$c)$ $PbS + 2 PbO ⟶ 3 Pb + {SO}_{2}$

$d)$ ${Cu}_{2} O + C ⟶ 2 Cu + CO$

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Reduction of Metal Oxides to Metals

Which one is the ore of copper?

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Reduction of Metal Oxides to Metals

Among the reactions

(a) - (d),

the reaction(s) that does/do not occur in the blast furnace during the extraction of iron is/are:

(a)

C a O + S i O_{2} \to C a S i O_{3}

(b)

3 F e_{2} O_{3} + C O \to 2 F e_{3} O_{4} + C O_{2}

(c)

F e O + S i O_{2} \to F e S i O_{3}

(d)

F e O \to F e + \frac{1}{2} O_{2}

MEDIUM

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Reduction of Metal Oxides to Metals

What is flux? Give one example of each of an acidic flux and a basic flux.

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Reduction of Metal Oxides to Metals

The addition of silica during the extraction of copper from its sulphide ore :-

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Reduction of Metal Oxides to Metals

In the extraction of copper from its sulphide ore, metal is finally obtained by the oxidation of cuprous sulphide with:

MEDIUM

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Reduction of Metal Oxides to Metals

The correct statement

(s)

related to the metal extraction processes is(are)

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Reduction of Metal Oxides to Metals

Which of the following reduction reaction CANNOT be carried out with coke?

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Reduction of Metal Oxides to Metals

Which of the following metals cannot be obtained by auto-reduction of their compounds?

HARD

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Reduction of Metal Oxides to Metals

The carbon-based reduction method is NOT used for the extraction of

HARD

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Reduction of Metal Oxides to Metals

Which series of reactions correctly represents the chemical relations related to iron and its compound?

HARD

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Reduction of Metal Oxides to Metals

Write reactions involved at different temperatures in the blast furnace.

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Reduction of Metal Oxides to Metals

What are the refractory materials and suggest few examples?

HARD

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Reduction of Metal Oxides to Metals

In blast furnace, iron oxide is reduced by:

Draw a neat diagram of the reverberatory furnace and label it neatly?

Important Questions on General Principles and Processes of Isolation of Metals (Metallurgy)

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