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Byju's Answer
Standard XII
Chemistry
Valency and Oxidation State
What is the o...
Question
What is the oxidation number of central atom in
[
P
t
(
N
H
3
)
3
C
l
]
C
l
?
A
1
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B
2
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C
3
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D
4
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Solution
The correct option is
A
2
[
P
t
(
N
H
3
)
3
C
l
]
C
l
It can be written as,
[
P
t
(
N
H
3
)
3
C
l
]
+
C
l
The central atom in
[
P
t
(
N
H
3
)
3
C
l
]
+
is
P
t
.
The oxidation state of
N
H
3
=
0
and
C
l
=
−
1
In general,
Let oxidation state of
P
t
=
x
Applying formula,
Sum of total oxidation state of all atoms
=
Overall charge on the compound
.
x
+
3
×
0
+
1
×
(
−
1
)
=
+
1
,
x
=
2
∴
Oxidation state of
P
t
=
+
2
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0
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