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General Principles and Processes of Isolation of Elements — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryGeneral Principles and Processes of Isolation of Elements5 Marks
Question
Match the items of Column I with items of Column II and assign the correct code:
 
Column I
 
Column II
(A)
Coloured bands
(1)
Zone refining
(B)
LImpure matal to volatie complex
(2)
Fractional distillation
(C)
Purification of Ge and Si
(3)
Mond process
(D)
Purification of mercury
(4)
Chromatophy
 
 
(5)
Liquation
  1. A (1) B (2) C (4) D (5)
  2. A (4) B (3) C (1) D (2)
  3. A (3) B (4) C (2) D (1)
  4. A (5) B (4) C (3) D (2)
✓

Answer

 
Column I
 
Column II
(A)
Coloured bands
(4)
Chromatophy
(B)
LImpure matal to volatie complex
(3)
Mond process
(C)
Purification of Ge and Si
(1)
Zone refining
(D)
Purification of mercury
(2)
Fractional distillation
  1. A (4) B (3) C (1) D (2)
Explanation:
  1. Coloured bands are observed in chromatography.
  2. Impure metal is converted to volatile complex by using Mond’s process.
  3. Ge and Si are purified by zone refining method.
  4. Purification of mercury is done by fractional distillation.

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