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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)
Blisterred Cu
(1)
Aluminium
(B)
Blast furnace
(2)
$2\text{Cu}_{2}\text{O}+\text{Cu}_{2}\text{S}\ \xrightarrow{\ \ \ \ \ }6\text{Cu}+\text{SO}_{2}$
(C)
Reveerberatory furnace
(3)
Iron
(D)
Hall - Hereoult proess
(4)
$\text{FeO}+\text{SiO}_{2}\ \xrightarrow{\ \ \ \ \ }\text{FeSiO}_{3}$
 
 
(5)
$2\text{Cu}_{2}\text{S}+3\text{O}_{2}\ \xrightarrow{\ \ \ \ \ }2\text{Cu}_{2}\text{O}+2\text{SO}_{2}$
  1. A (2) B (3) C (4) D (1)
  2. A (1) B (2) C (3) D (5)
  3. A (5) B (4) C (3) D (2)
  4. A (4) B (5) C (3) D (2)
✓

Answer

 
Column I
 
Column II
(A)
Blisterred Cu
(1)
 $2\text{Cu}_{2}\text{O}+\text{Cu}_{2}\text{S}\ \xrightarrow{\ \ \ \ \ }6\text{Cu}+\text{SO}_{2}$
(B)
Blast furnace
(2)
Iron
 
(C)
Reveerberatory furnace
(3)
$\text{FeO}+\text{SiO}_{2}\ \xrightarrow{\ \ \ \ \ }\text{FeSiO}_{3}$
(D)
Hall - Hereoult proess
(4)
Aluminium
 
  1. A (2) B (3) C (4) D (1)
Explanation:
  1. Blistered Cu can be prepared by means of the following chemical reaction:
$2\text{Cu}_{2}\text{O}+\text{Cu}_{2}\text{S}\ \xrightarrow{\ \ \ \ \ \ }6\text{Cu}+\text{SO}_{2}$
  1. Iron is extracted in the blast furnace.
  2. In reverbereatory funace, the formation of slag occurs as
$\text{FeO}+\text{SiO}_{2}\ \xrightarrow{\ \ \ \ \ \ }\text{FeSiO}_{3}$

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