EASY
Earn 100

How does the Bessemerisation process carried out?

Important Questions on General Principles and Processes of Isolation of Elements

EASY
Which refining process is generally used in the purification of low melting metals?
EASY
Name the method of refining which is used to obtain semiconductor of high purity.
HARD
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
Write down the chemical reactions taking place in the extraction of zinc from zinc blende.
MEDIUM
Which of the following impurity can be removed by electrodialysis method?
 
EASY
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
In Van Arkel method for refining zirconium or titanium, the halogen used is _____.
MEDIUM
Which one of the following methods can be used to obtain highly pure metal which is liquid at room temperature?
EASY

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
Copper is purified by electrolytic refining of blister copper. The correct statement(s) about this process is (are)