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The p-Block Elements
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Oxoacids of Phosphorus
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The oxidation state of P in H3PO4 is :
Question
The oxidation state of P in
H
3
โ
P
O
4
โ
is :
A
+ 3
B
+ 5
C
+ 7
D
None of these
Medium
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Updated on : 2022-09-05
Solution
Verified by Toppr
Correct option is B)
We know that oxidation state of
O
=
โ
2
,
H
=
+
1
Now, let's assume oxidation state of
P
=
x
So,
x
+
4
ร
(
โ
2
)
+
3
ร
(
+
1
)
=
0
โ
x
โ
8
+
3
=
0
โ
x
=
+
5
Hence the oxidation state of P in
H
3
โ
P
O
4
โ
is
+
5
.
Therefore option
(
B
)
is correct.
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