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Correct formula of Azurite is

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

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Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Extraction of Important Elements from their Ores
Cast iron is used for the manufacture of :
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Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Extraction of Important Elements from their Ores
In the context of the Hall-Heroult process for the extraction of Al, which of the following statements is false?
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Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Extraction of Important Elements from their Ores

Among the following, the main reactions occurring in blast furnace during extraction of iron from haematite are:

(i) Fe2O3+3CO⟶2Fe+3CO2

(ii) FeO+SiO2⟶FeSiO3

(iii) Fe2O3+3C⟶2Fe+3CO

(iv) CaO+SiO2⟶CaSiO3

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Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Extraction of Important Elements from their Ores
Which of the following metal is leached by cyanide process 
HARD
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Extraction of Important Elements from their Ores
Extraction of copper from copper pyrite CuFeS2 involves
MEDIUM
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Extraction of Important Elements from their Ores
Identify the correct statement from the following:
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Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Extraction of Important Elements from their Ores
The purest form of commercial iron is:
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Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Extraction of Important Elements from their Ores
The molecular formula of malachite ore is:
MEDIUM
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Extraction of Important Elements from their Ores
The form of iron obtained from blast furnace is :
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Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Extraction of Important Elements from their Ores
Which one of the following ores is known as Malachite:
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Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Extraction of Important Elements from their Ores
Hall Heroult's process is given by:
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Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Extraction of Important Elements from their Ores
In the extraction of copper from its sulphide ore, the metal is finally obtained by the reduction of cuprous oxide with:
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Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Extraction of Important Elements from their Ores
In the context of the Hall-Heroult process for the extraction of Al, which of the following statement is incorrect.
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Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Extraction of Important Elements from their Ores
Among statements (a) – (d), the correct ones are :
(a) Lime stone is decomposed to 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) Zr and Ti are purified by Van Arkel method.
MEDIUM
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Extraction of Important Elements from their Ores
The final step for extraction of copper from copper pyrite in bessemer converter involves the reaction
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Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Extraction of Important Elements from their Ores

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

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Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Extraction of Important Elements from their Ores
Copper is extracted from copper pyrites by
HARD
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Extraction of Important Elements from their Ores
Upon heating with Cu2S, the reagent(s) that give copper metal is/are
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Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Extraction of Important Elements from their Ores
Name the process that is employed to refine aluminium.
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Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Extraction of Important Elements from their Ores
In the Hall-Heroult process, aluminium is formed at the cathode. The cathode is made out of: