What happens during bessemerization process of extraction of copper from copper pyrites?

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

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements (Metallurgy)>Metallurgy of Some Important Metals

In the context of the Hall-Heroult process for the extraction of $\mathrm{Al}$, which of the following statements is false?

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements (Metallurgy)>Metallurgy of Some Important Metals

Among the reactions $\left(\mathrm{a}\right)-\left(\mathrm{d}\right),\mathrm{}$ the reaction(s) that does/do not occur in the blast furnace during the extraction of iron is/are:
$\left(\mathrm{a}\right)$ $CaO+Si{O}_2\to CaSi{O}_3$
$\left(b\right)$ $3F{e}_2{O}_3+CO\to 2F{e}_3{O}_4+C{O}_2$
$\left(c\right)$ $FeO+Si{O}_2\to FeSi{O}_3$
$\left(d\right)$ $FeO\to Fe+\frac{1}{2}{O}_2$

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements (Metallurgy)>Metallurgy of Some Important Metals

Cast iron is used for the manufacture of :

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements (Metallurgy)>Metallurgy of Some Important Metals

In the context of the Hall-Heroult process for the extraction of $\mathrm{Al}$, which of the following statement is incorrect.

HARD

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements (Metallurgy)>Metallurgy of Some Important Metals

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

MEDIUM

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements (Metallurgy)>Metallurgy of Some Important Metals

Identify the correct statement from the following:

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements (Metallurgy)>Metallurgy of Some Important Metals

The purest form of commercial iron is:

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements (Metallurgy)>Metallurgy of Some Important Metals

Match the following 

	List - I		List - II
(a)	Copper	(i)	Bauxite
(b)	Iron	(ii)	Malachite
(c)	Zinc	(iii)	Haematite
(d)	Aluminium	(iv)	Calamine
		(v)	Galena

The correct answer is

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements (Metallurgy)>Metallurgy of Some Important Metals

Name the process that is employed to refine aluminium.

MEDIUM

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements (Metallurgy)>Metallurgy of Some Important Metals

The form of iron obtained from blast furnace is :

MEDIUM

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements (Metallurgy)>Metallurgy of Some Important Metals

The final step for extraction of copper from copper pyrite in bessemer converter involves the reaction

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements (Metallurgy)>Metallurgy of Some Important Metals

In the Hall-Heroult process, aluminium is formed at the cathode. The cathode is made out of:

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements (Metallurgy)>Metallurgy of Some Important Metals

Copper is extracted from copper pyrites by

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements (Metallurgy)>Metallurgy of Some Important Metals

Among statements (a) – (d), the correct ones are :
(a) Lime stone is decomposed to $\mathrm{CaO}$ during the extraction of iron from its oxides.
(b) In the extraction of silver, silver is extracted as an anionic complex.
(c) Nickel is purified by Mond’s process.
(d) $\mathrm{Zr}$ and $\mathrm{Ti}$ are purified by Van Arkel method.

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements (Metallurgy)>Metallurgy of Some Important Metals

The molecular formula of malachite ore is:

MEDIUM

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements (Metallurgy)>Metallurgy of Some Important Metals

In the Bayer's process, the leaching of alumina is done by using

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements (Metallurgy)>Metallurgy of Some Important Metals

Which among following processes occurs at $1500 \mathrm{K}$ in blast furnace for extraction of iron 

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements (Metallurgy)>Metallurgy of Some Important Metals

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

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements (Metallurgy)>Metallurgy of Some Important Metals

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

EASY

Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements (Metallurgy)>Metallurgy of Some Important Metals

Hall Heroult's process is given by: