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Standard IX
Chemistry
Common Oxidation States
What is the o...
Question
What is the oxidation states of C5,Fe3,Cl2,Br3,H2 in the compounds Na2S2O3,C5O5,Fe3O4, CaOCl2,Br3O8,H2S2O8?
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Similar questions
Q.
C
a
O
C
l
2
in aqueous solution changes to
C
l
2
. What is the average oxidation state of
C
l
in
C
a
O
C
l
2
?
Q.
How many substances have underlined atoms of different nature?
N
a
2
S
4
–
–
–
O
6
,
N
a
2
S
2
–
–
–
O
3
,
C
a
O
C
l
2
–
––
–
,
N
2
–
–
–
H
4
O
3
,
F
e
3
–
––
–
O
4
,
K
I
3
–
–
,
C
r
O
5
–
–
–
,
K
2
C
r
2
–
––
–
O
7
Q.
What is the oxidation state of sulphur in
N
a
2
S
2
O
3
?
Q.
In the following sequence of reactions:
C
a
O
C
l
2
+
H
2
O
⟶
C
a
(
O
H
)
2
+
C
l
2
2
K
I
+
C
l
2
⟶
2
K
C
l
+
I
2
I
2
+
2
N
a
2
S
2
O
3
⟶
N
a
2
S
4
O
6
+
2
N
a
I
Calculate moles of
N
a
2
S
2
O
3
required for complete reduction of
I
2
obtained from
127
g
C
a
O
C
l
2
sample (
50
%
purity).
Q.
The sum of oxidation states of sulphur in
H
2
S
2
O
8
is?
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