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Chemistry
In the cyanide extraction process of silver from argentite ore, the oxidizing and reducing agents used are
Q. In the cyanide extraction process of silver from argentite ore, the oxidizing and reducing agents used are
97
169
NTA Abhyas
NTA Abhyas 2022
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A
H
N
O
3
and CO respectively
B
H
N
O
3
and Zn dust respectively
C
O
2
and Zn dust respectively
D
O
2
and CO respectively.
Solution:
In the cyanide extraction process of silver from argentite ore, the oxidizing and reducing agents used are
O
2
and Zn dust respectively.
(
Ag
)
2
S
+
2
(
CN
)
−
+
(
O
)
2
→
2
(
[
Ag
(
CN
)
2
]
)
−
+
(
SO
)
2
2
(
[
Ag
(
CN
)
2
]
)
−
+
Zn
→
(
[
Zn
(
CN
)
4
]
)
2
−
+
2
Ag