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Chemistry
In chemical reaction of potassium ferrocyanide and hydrogen peroxide in the presence of dil. H2SO4
Q. In chemical reaction of potassium ferrocyanide and hydrogen peroxide in the presence of dil.
H
2
S
O
4
1691
179
NTA Abhyas
NTA Abhyas 2020
The d-and f-Block Elements
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A
Ferrocyanide gets reduced to ferricyanide
B
Ferrocyanide gets oxidised
C
Iron does not change its oxidation state
D
Hydrogen peroxide is oxidised
Solution:
In reaction of potassium ferrocyanide and hydrogen peroxide in the presence of dil.
H
2
S
O
4
[
F
e
(
CN
)
6
]
4
−
is oxidised by
H
2
O
2
into
[
F
e
(
CN
)
6
]
3
−
ions.
2
K
4
[
F
e
(
CN
)
6
]
+
H
2
O
2
→
2
K
3
[
F
e
(
CN
)
6
]
+
2
K
O
H