HARD
Earn 100

Draw diagram of Bessemer converter and why there is lining of silica for reduction of copper oxide.

Important Questions on General Principles and Processes of Isolation of Metals (Metallurgy)

EASY
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining or Purification of Impure Metals
Explain the role of iodine in the refining of Ti
EASY
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining or Purification of Impure Metals
Which refining process is generally used in the purification of low melting metals?
EASY
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining or Purification of Impure Metals
Name the method of refining which is used to obtain semiconductor of high purity.
EASY
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining or Purification of Impure Metals
Purification of aluminium by electrolytic refining is called:
MEDIUM
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining or Purification of Impure Metals
The pair of metals refined by "vapour phase refining" is
EASY
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining or Purification of Impure Metals
Write short notes on :
Zone refining
EASY
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining or Purification of Impure Metals
Name the method of refining which is used to obtain low boiling metal.
HARD
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining or Purification of Impure Metals
Name the process of obtaining pure metal from an impure metal through electrolysis. If you have to refine copper using this process, mention the materials used as (i) anode, (ii) cathode and (iii) electrolyte.
HARD
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining or Purification of Impure Metals
Explain zone refining.
HARD
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining or Purification of Impure Metals
Write down the chemical reactions taking place in the extraction of zinc from zinc blende.
EASY
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining or Purification of Impure Metals
What is the principle of zone refining?
EASY
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining or Purification of Impure Metals
For the electro-refining of copper, what is the cathode made up of?
MEDIUM
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining or Purification of Impure Metals
Which of the following impurity can be removed by electrodialysis method?
 
EASY
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining or Purification of Impure Metals
What are the two requirements for vapour phase refining? Write the chemical reactions which occur during Mond's process for the refining of nickel.
MEDIUM
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining or Purification of Impure Metals
Give the Mond Process for refining of nickel.
MEDIUM
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining or Purification of Impure Metals
In Van Arkel method for refining zirconium or titanium, the halogen used is _____.
MEDIUM
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining or Purification of Impure Metals
Give the advantages of the electrolytic refining process.
MEDIUM
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining or Purification of Impure Metals
Which one of the following methods can be used to obtain highly pure metal which is liquid at room temperature?
EASY
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining or Purification of Impure Metals

Match the elements in Column I with methods of purification in Column II.

  Column-I   Column-II
(a) Boron (p) Van Arkel method
(b) Tin (q) Mond's process
(c) Zirconium (r) Liquation
(d) Nickel (s) Zone refining


 

HARD
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Metals (Metallurgy)>Refining or Purification of Impure Metals
Copper is purified by electrolytic refining of blister copper. The correct statement(s) about this process is (are)