English
Karnataka Board PUCPUC Science 2nd PUC Class 12

Write two basic requirements for refining of a metal by Mond process and by Van Arkel Method.

Advertisements
Advertisements

Question

Write two basic requirements for refining of a metal by Mond process and by Van Arkel Method.

Short/Brief Note
Advertisements

Solution

Two basic requirements for both processes are:

(i) The metal should form a volatile compound with an available reagent.

(ii) The volatile compound should be easily decomposable, so that recovery of metal is easy.

shaalaa.com
  Is there an error in this question or solution?
Chapter 6: General Principle and Processes of Isolation of Elements - Multiple Choice Questions (Type - I) [Page 82]

APPEARS IN

NCERT Exemplar Chemistry Exemplar [English] Class 12
Chapter 6 General Principle and Processes of Isolation of Elements
Multiple Choice Questions (Type - I) | Q 31 | Page 82

RELATED QUESTIONS

Name the method of refining of metals such as Germanium.


What is the principle behind the zone refining of metals?


Explain the principle of the method of electrolytic refining of metals. Give one example.


Explain: 

Zone refining


Name the common elements present in the anode mud in electrolytic refining of copper. Why are they so present?


Outline the principles of refining of metals by the following method:

Vapour phase refining


Write the chemical equations involved in van Arkel method for refining zirconium metal.


Outline the principles behind the refining of metals by the following methods:

Zone refining method


Outline the principles behind the refining of metals by the following methods:

Chromatographic method


Write the principle behind the following methods of refining:

Vapour-phase refining


What happens when Copper matte is charged into silica lined converter and hot air blast is blown? 


In which of the following method of purification, metal is converted to its volatile compound which is decomposed to give pure metal?

(i) Heating with stream of carbon monoxide.

(ii) Heating with iodine.

(iii) Liquation.

(iv) Distillation.


Match the items of Column I with the items of Column II and assign the correct code:

Column I Column II
(A) Coloured bands (1) Zone refining
(B) Impure metal to volatile complex (2) Fractional distillation
(C) Purification of Ge and Si (3) Mond Process
(D) Purification of mercury (4) Chromatography
  (5) Liquation

Assertion: Zirconium can be purificed by Van Arkel method.

Reason: ZrI4 is volatile and decomposes at 1800 K.


Electrolytic reduction method is used for the extraction of ______.


Refining using liquation method is the most suitable for metals with ______.


Describe a method for refining nickel.


Describe a method for refining nickel.


Describe a method for refining nickel.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×