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

Column I Column II
A Blistered Cu 1.   Aluminium
B Blast furnace 2. 2Cu2O + Cu2S →  6Cu  + SO2
C Reverberatory furnace 3. Iron
D Hall-Heroult process 4. FeO   +   SiO2   →   FeSiO3
5. 2 Cu2S   +   3O2   →   2Cu2O + 2SO2
 

 Codes: 

Options:  A   B   C   D  
1.  2 3 4 1
2. 1 2 3 5
3. 5 4 3 2
4. 4 5 3 2

     

NEETprep Answer:
A. 2         B. 3           C.4           D.1
A. Blistered Cu can be prepared by means of following chemical reaction
2 Cu2O + Cu2S 6Cu + SO2

B. lron is extracted by using blast furnace.

C. In reverberatory furnace formation of slag occurs as
FeO + SiO2 FeSiO3Slag

D. Hall-Heroult process is used for extraction of aluminium.