MEDIUM
Earn 100

Explain the need for refining of crude metal obtained from the reduction process.

Important Questions on Metallurgy

EASY
Science>Chemistry>Metallurgy>Refining of Metals
Explain the role of iodine in the refining of Ti
EASY
Science>Chemistry>Metallurgy>Refining of Metals
Which refining process is generally used in the purification of low melting metals?
EASY
Science>Chemistry>Metallurgy>Refining of Metals
Name the method of refining which is used to obtain semiconductor of high purity.
EASY
Science>Chemistry>Metallurgy>Refining of Metals
Purification of aluminium by electrolytic refining is called:
MEDIUM
Science>Chemistry>Metallurgy>Refining of Metals
The pair of metals refined by "vapour phase refining" is
EASY
Science>Chemistry>Metallurgy>Refining of Metals
Write short notes on :
Zone refining
EASY
Science>Chemistry>Metallurgy>Refining of Metals
Name the method of refining which is used to obtain low boiling metal.
HARD
Science>Chemistry>Metallurgy>Refining of 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
Science>Chemistry>Metallurgy>Refining of Metals
Explain zone refining.
HARD
Science>Chemistry>Metallurgy>Refining of Metals
Write down the chemical reactions taking place in the extraction of zinc from zinc blende.
EASY
Science>Chemistry>Metallurgy>Refining of Metals
What is the principle of zone refining?
EASY
Science>Chemistry>Metallurgy>Refining of Metals
For the electro-refining of copper, what is the cathode made up of?
MEDIUM
Science>Chemistry>Metallurgy>Refining of Metals
Which of the following impurity can be removed by electrodialysis method?
 
EASY
Science>Chemistry>Metallurgy>Refining of 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
Science>Chemistry>Metallurgy>Refining of Metals
Give the Mond Process for refining of nickel.
MEDIUM
Science>Chemistry>Metallurgy>Refining of Metals
In Van Arkel method for refining zirconium or titanium, the halogen used is _____.
MEDIUM
Science>Chemistry>Metallurgy>Refining of Metals
Give the advantages of the electrolytic refining process.
MEDIUM
Science>Chemistry>Metallurgy>Refining of Metals
Which one of the following methods can be used to obtain highly pure metal which is liquid at room temperature?
EASY
Science>Chemistry>Metallurgy>Refining of 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
Science>Chemistry>Metallurgy>Refining of Metals
Copper is purified by electrolytic refining of blister copper. The correct statement(s) about this process is (are)