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Chemistry
Which of the following reactions show the process of smelting?
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Q. Which of the following reactions show the process of smelting?
JIPMER
JIPMER 2012
General Principles and Processes of Isolation of Elements
A
$2PbO + PbS \rightarrow 3Pb + SO_2$
16%
B
$ 2Na[Au(CN)_2] + Zn \rightarrow Na_2[Zn(CN)_4] +2Au$
15%
C
$PbO + C \rightarrow Pb + CO$
51%
D
$2HgS + 3O_2 \rightarrow 2HgO + 2SO_2$
18%
Solution:
Smelting is the process of extraction of a metal by reduction of its oxide with carbon (in the form of coke, charcoal or carbon monoxide).