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Ashok has written the following reactions to show how metals can be obtained from their ores.
P) 2 Fe 2 O 3 + 3C --------> 4 Fe + 3 CO 2
Q) Na 2 O + C --------> 2 Na + CO
R) ZnO + C --------> Zn + CO
S) CuO + C -----------> Cu + CO2
Identify the INCORRECT reaction(s) among them.
A. only P
B. only Q
C. only P and R
D. only Q, R or S
Answer:
P. This equation shows how Iron is obtained from its ore.
This reaction takes place in the blast furnace .
Q. Na2O + C --------> 2 Na + CO
Sodium is a highly reactive metal.
Metals like Sodium, Potassium are extracted using electrolytic reduction of their metal chlorides
R. ZnO + C --------> Zn + CO
S. CuO + C -----------> Cu + CO 2
- Zn and C u are both moderately reactive metals.
- Both can be obtained from their ores by reduction by Copper .
Therefore, the correct answer is B .
