HARD
Earn 100
An alloy quenched past the nose of the C-curve in the isothermal transformation diagram will undergo (martensitic/austenitic) transformation.
50% studentsanswered this correctly
Important Questions on General Principles and Processes of Isolation of Metals (Metallurgy)
MEDIUM
Identify the correct statement from the following:
EASY
The purest form of commercial iron is:
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
Which among the following reactions occurs at the zone of slag formation in extraction of iron by blast furnace?
HARD
Extraction of copper from copper pyrite involves
EASY
Copper is extracted from copper pyrites by
EASY
Cast iron is used for the manufacture of :
EASY
Blister copper contains _________ percentage of copper.
MEDIUM
The form of iron obtained from blast furnace is :
EASY
Which one of the following ores is known as Malachite:
EASY
What happens during bessemerization process of extraction of copper from copper pyrites?
EASY
Which is used for manufacture of steel?
EASY
Which one of the following set of metals deposit as anode mud during the process of electrolytic refining of copper?
MEDIUM
The final step for extraction of copper from copper pyrite in bessemer converter involves the reaction
EASY
Copper is extracted from sulphide ore using the method
EASY
Which among the following reactions occurs at zone of slag formation in the process of extraction of iron by blast furnace?
HARD
Upon heating with , the reagent(s) that give copper metal is/are
EASY
The alloy containing a non-metal is:
EASY
Which of the following mixture can form an alloy?
