How to find the Oxidation Number for O in H2O2 (Hydrogen peroxide)
How to find the Oxidation Number for O in H2O2 (Hydrogen peroxide)

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The oxidation number of sulphur in H2S2O
Question
The oxidation number of sulphur in
H
2
S
2
O
8
is:
A
+
2
B
+
4
C
+
6
D
+
7
Medium
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Updated on : 2022-09-05
Solution
Verified by Toppr
Correct option is C)
H

O

O
∣∣
S
∣∣
O

O

O

O
∣∣
S
∣∣
O

O

H

2
O
-atoms are in peroxide linkage

Their oxidation state
=

1
and, oxidation state of remaining
6
O
-atoms
=

2
Oxidation state of
H

atoms
=
+
1
Let oxidation state of
S
atom
=
x
S
2
H
2
O
6
O
2

2
x
+
2
(
+
1
)
+
6
(

2
)
+
2
(

1
)
=
0
2
x
+
2

1
2

2
=
0

x
=
+
6
.
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Assertion
Oxidation number of sulphur in
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is
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Reason
It has one peroxy linkage.
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