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Explain Hall's process of concentration of bauxite ore, in the extraction of aluminium by using electrochemical principles of metallurgy.

Important Questions on General Principles of Metallurgy

EASY
Chemistry>Inorganic Chemistry>General Principles of Metallurgy>Electrochemical Principles of Metallurgy
Write balanced chemical equations how zinc blende is converted to zinc oxide.
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Chemistry>Inorganic Chemistry>General Principles of Metallurgy>Electrochemical Principles of Metallurgy
Electrochemical process is used to extract
HARD
Chemistry>Inorganic Chemistry>General Principles of Metallurgy>Electrochemical Principles of Metallurgy
How is chemical reduction different from electrolytic reduction? Name a metal of each, which is obtained by chemical reduction.
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Chemistry>Inorganic Chemistry>General Principles of Metallurgy>Electrochemical Principles of Metallurgy
Identify the set metals which can be extracted by the electrochemical principles of metallurgy. 
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Chemistry>Inorganic Chemistry>General Principles of Metallurgy>Electrochemical Principles of Metallurgy
In which process, fused sodium hydroxide is electrolysed for extraction of sodium?
HARD
Chemistry>Inorganic Chemistry>General Principles of Metallurgy>Electrochemical Principles of Metallurgy
Write a short note on electrochemical principle of metallurgy.
EASY
Chemistry>Inorganic Chemistry>General Principles of Metallurgy>Electrochemical Principles of Metallurgy
Which of the following metals is extracted using electrometallurgical process?
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Chemistry>Inorganic Chemistry>General Principles of Metallurgy>Electrochemical Principles of Metallurgy

Represent the union of two sets by Venn diagram for each of the following.

X={x | x is a prime number between 80 and 100}

Y={y | y is an odd number between 90 and 100}

HARD
Chemistry>Inorganic Chemistry>General Principles of Metallurgy>Electrochemical Principles of Metallurgy
Which one of the following is not feasible?
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Chemistry>Inorganic Chemistry>General Principles of Metallurgy>Electrochemical Principles of Metallurgy
In the electrochemical process of extraction of metals, the decrease in free energy is related to the electrode potential as
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Chemistry>Inorganic Chemistry>General Principles of Metallurgy>Electrochemical Principles of Metallurgy
Metallic sodium is extracted by the electrolysis of brine (aq. NaCl). After electrolysis the electrolytic solution becomes basic in nature. Write the possible electrode reactions.
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Chemistry>Inorganic Chemistry>General Principles of Metallurgy>Electrochemical Principles of Metallurgy
Explain with a suitable example the term cathodic reduction.
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Chemistry>Inorganic Chemistry>General Principles of Metallurgy>Electrochemical Principles of Metallurgy
 Write a short note on electrochemical principles of metallurgy.
EASY
Chemistry>Inorganic Chemistry>General Principles of Metallurgy>Electrochemical Principles of Metallurgy

Describe the role of the following in the process mentioned.

Cryolite in the extraction of aluminium.

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Chemistry>Inorganic Chemistry>General Principles of Metallurgy>Electrochemical Principles of Metallurgy
In the extraction of aluminium from alumina by electrolysis, cryolite is added to
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Chemistry>Inorganic Chemistry>General Principles of Metallurgy>Electrochemical Principles of Metallurgy
What is electrometallurgy?
EASY
Chemistry>Inorganic Chemistry>General Principles of Metallurgy>Electrochemical Principles of Metallurgy
Cotyledons are also called-
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Chemistry>Inorganic Chemistry>General Principles of Metallurgy>Electrochemical Principles of Metallurgy
Which of the metal is extracted by Hall-Heroult's process?
HARD
Chemistry>Inorganic Chemistry>General Principles of Metallurgy>Electrochemical Principles of Metallurgy
    Explain the electrometallurgy of aluminium.
EASY
Chemistry>Inorganic Chemistry>General Principles of Metallurgy>Electrochemical Principles of Metallurgy

How many metals are commercially extracted by hydrometallurgy from the given metals?

(Ag, Mn, In, Cr, Pb, Au)