MEDIUM
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Which of the following represents the composition of carnallite mineral ?
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Important Questions on General Principles and Processes of Isolation of Metals (Metallurgy)
EASY
Among statements (a) – (d), the correct ones are :
(a) Lime stone is decomposed to 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) and are purified by Van Arkel method.
EASY
The purest form of commercial iron is:
EASY
Cast iron is used for the manufacture of :
EASY
Which of the following metal is leached by cyanide process
EASY
Name the process that is employed to refine aluminium.
MEDIUM
Explain the process of obtaining "blister copper" from "copper matte" with equation.
EASY
What is the composition of copper matte?
EASY
Copper is extracted from copper pyrites by
HARD
Extraction of copper from copper pyrite involves
MEDIUM
The form of iron obtained from blast furnace is :
EASY
In the context of the Hall-Heroult process for the extraction of , which of the following statement is incorrect.
EASY
In the Hall-Heroult process, aluminium is formed at the cathode. The cathode is made out of:
MEDIUM
The final step for extraction of copper from copper pyrite in bessemer converter involves the reaction
MEDIUM
Identify the correct statement from the following:
EASY
The molecular formula of malachite ore is:
EASY
What happens during bessemerization process of extraction of copper from copper pyrites?
EASY
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
HARD
Upon heating with , the reagent(s) that give copper metal is/are
EASY
In the context of the Hall-Heroult process for the extraction of , which of the following statements is false?
EASY
Hall Heroult's process is given by:
