EASY
12th West Bengal Board
IMPORTANT
Earn 100
Explain the basic principle of the following metallurgical operations electrolytic refining.
Important Questions on General Principles and Processes of Isolation of Elements
MEDIUM
12th West Bengal Board
IMPORTANT
State briefly the principles which serve as a basis for the following operations in metallurgy-Froth floatation method
EASY
12th West Bengal Board
IMPORTANT
State briefly the principles which serve as the basis for the following operations in metallurgy :- Vapour phase refining
EASY
12th West Bengal Board
IMPORTANT
State briefly the principles which serve as the basis for the following operations in metallurgy :-Refining by Liquation.
EASY
12th West Bengal Board
IMPORTANT
Write the chemical reactions which take place in the following operations : electrolytic reduction of
MEDIUM
12th West Bengal Board
IMPORTANT
Write the chemical reactions which take place in the following operations :- Isolation of zinc from zinc blende.
MEDIUM
12th West Bengal Board
IMPORTANT
Write the chemical reactions which take place in the following operations-Mond's Process of refining Nickel.
MEDIUM
12th West Bengal Board
IMPORTANT
What chemical principle is involved in choosing a reducing agent for getting the metal from its oxide ore? Consider the metal oxide, alumina ferric oxide and justify the choice for the reducing agent ?
MEDIUM
12th West Bengal Board
IMPORTANT
Explain the role of
(i) cryolite in the electrolytic reduction of alumina
