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General Principles and processes of Isolation of Elements
medium
Which of the following oxide is not reduced by carbon reduction for their commercial extraction?
A
$PbO$
B
$SnO_2$
C
$ZnO$
D
$MgO$
Solution
$(1)$ $\mathrm{PbO}+\mathrm{C} \longrightarrow \mathrm{Pb}+\mathrm{CO}$
$(2)$ $\mathrm{SnO}_{2}+2 \mathrm{C} \longrightarrow \mathrm{Sn}+2 \mathrm{CO}$
$(3)$ $\mathrm{ZnO}+\mathrm{C} \longrightarrow \mathrm{Zn}+\mathrm{CO}$
$(4)$ Temp. requirement is very high.
Standard 12
Chemistry
