EASY
Earn 100
Alumino-thermic process is used for the extraction of metals, whose oxides are
50% studentsanswered this correctly
Important Questions on General Principles and Processes of Isolation of Metals (Metallurgy)
MEDIUM
Explain calcination and roasting.
HARD
Which series of reactions correctly represents the chemical relations related to iron and its compound?
MEDIUM
Explain the following:
Flux
MEDIUM
Draw a labelled diagram of blast furnace and write the name of any one metal for extraction of which this furnace is used.
MEDIUM
The correct statement related to the metal extraction processes is(are)
MEDIUM
What is the role of silica in the copper metallurgy?
EASY
Explain the method to remove iron impurity from copper matte with chemical equations. (Figure is not required).
EASY
In the extraction of copper from its sulphide ore, metal is finally obtained by the oxidation of cuprous sulphide with:
EASY
Explain the role of the following in the processes mentioned :
Limestone in the metallurgy of iron.
HARD
What chemical process is used for obtaining a metal from its oxide? Explain with examples.
EASY
What is thermit mixture ? Mention one use of it.
MEDIUM
What is flux? Give one example of each of an acidic flux and a basic flux.
MEDIUM
Differentiate the following-
Flux and Slag
MEDIUM
Draw a neat labelled diagram of a "blast furnace".
MEDIUM
Differentiate the following-
Smelting and Roasting
EASY
Among the reactions the reaction(s) that does/do not occur in the blast furnace during the extraction of iron is/are:
HARD
The carbon-based reduction method is NOT used for the extraction of
EASY
Explain the following: Poling.
EASY
The addition of silica during the extraction of copper from its sulphide ore :-
EASY
Extraction of copper by smelting uses silica as an additive to remove.
