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Byju's Answer
Standard XII
Chemistry
Oxidation Number Method
Balance the f...
Question
Balance the following reactions by oxidation number method :
F
e
S
2
+
O
2
→
F
e
2
O
3
+
S
O
2
Open in App
Solution
F
e
+
2
→
F
e
+
3
1
↑
S
−
1
2
→
2
S
+
4
10
↑
both have total
11
↑
∗
4
F
e
+
2
→
F
e
+
3
;
o
n
e
l
o
s
s
o
f
e
l
e
c
t
r
o
n
S
−
1
2
→
2
S
+
4
;
2
∗
5
=
10
e
l
e
c
t
r
o
n
l
o
s
s
e
d
both have total 11 electron.
And
O
2
⟶
2
O
2
−
(
2
×
2
=
4
electron gained)
4
[
F
e
S
2
+
11
O
2
⟶
2
F
e
3
+
+
8
S
+
4
+
22
O
−
2
]
or
3
F
e
S
2
+
11
O
2
⟶
2
F
e
2
O
3
+
8
S
O
2
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5
Similar questions
Q.
Balance the following equation.
F
e
S
2
+
O
2
→
F
e
2
O
3
+
S
O
2
Q.
Equivalent weight of
F
e
S
2
[mol.wt = M] in the following reaction is?
F
e
S
2
+
O
2
→
F
e
2
O
3
+
S
O
2
Q.
'
n
' factor for
S
O
2
in
F
e
S
2
+
O
2
⟶
F
e
2
O
3
+
S
O
2
, is
:
Q.
n
-factor for the following reaction is
:
F
e
S
2
→
F
e
2
O
3
+
S
O
2
Q.
Equivalent weight of
F
e
S
2
in the half reaction,
F
e
S
2
→
F
e
2
O
3
+
S
O
2
is:
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