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Standard XII
Chemistry
Oxyacids Of Sulphur
Question
Sulphur in
+
3
oxidation state is present in:
pyrosulphuric acid
sulphurous acid
thionous acid
dithionous acid
A
sulphurous acid
B
dithionous acid
C
thionous acid
D
pyrosulphuric acid
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Solution
Verified by Toppr
H
−
O
−
O
|
|
S
−
O
|
|
S
−
O
−
H
D
i
t
h
i
o
n
o
u
s
a
c
i
d
Let oxidation state of sulphur be
x
.
2
×
1
+
4
×
(
−
2
)
+
2
x
=
0
2
−
8
+
2
x
=
0
2
x
=
+
6
x
=
+
3
.
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