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Byju's Answer
Standard XII
Chemistry
Valency and Oxidation State
Find the oxid...
Question
Find the oxidation number of I in
K
I
O
3
.
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Solution
In
K
I
O
3
K
is in +1
O
is in -2 and the net charge on
K
I
O
3
is zero.
Let the oxidation state of I be x
$
1+x-2(3) = 0 $
x
=
5
So oxidation number of
I in
K
I
O
3
is
5
.
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Similar questions
Q.
Consider the following statements for the reaction:
K
I
O
3
+
5
K
I
+
6
H
C
l
→
3
I
2
+
6
K
C
l
+
3
H
2
O
1.
I
−
is reduced to
I
2
2.
I
O
3
−
is oxidized to
I
2
3.
I
O
3
−
is reduced to
I
2
4.
Oxidation number of
I
increases from
−
1
(in
K
I
) to zero (in
I
2
)
The correct statements are:
Q.
Select the oxidant in the given reactions.
K
I
O
3
+
5
K
I
+
6
H
C
l
→
3
I
2
+
6
K
C
l
+
3
H
2
O
Q.
Hydro-zine reacts with
K
I
O
3
in presence of
H
C
l
as
N
2
H
4
+
I
O
−
3
+
2
H
+
+
C
l
−
→
I
C
l
+
N
2
+
3
H
2
O
The equivalent masses of
N
2
H
4
and
K
I
O
3
:
Q.
Which of the reactants act as oxidant or reductant if any:
K
I
O
3
+
5
K
I
+
6
H
C
l
→
3
I
2
+
6
K
C
I
+
3
H
2
O
Q.
The equivalent mass of
K
I
O
3
in the reaction
2
C
r
(
O
H
)
3
+
O
H
−
+
K
I
O
3
⟶
2
C
r
O
2
−
4
+
K
I
+
5
H
2
O
is :
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