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Byju's Answer
Standard XII
Chemistry
Properties of Water
What is the o...
Question
What is the order of acidic strength of
H
3
P
O
4
,
H
3
P
O
3
,
H
3
P
O
2
?
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Solution
The acidic strength is due to the presence of H+ ions. If you look at the structures of
H
3
P
O
4
,
H
3
P
O
3
,
H
3
P
O
2
you will find H3PO4 has 3 ionizable hydrogens,
H
3
P
O
3
has 2,
H
2
P
O
2
has 1. so, certainly, acidic strength is in order
H
3
P
O
4
>
H
3
P
O
3
>
H
3
P
O
2
.
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Similar questions
Q.
What is the acidic strength order of
H
3
P
O
2
,
H
3
P
O
3
,
H
3
P
O
4
? Why ?
Q.
The order of the oxidation state of the phosphorous atom in
H
3
P
O
2
,
H
3
P
O
4
,
H
3
P
O
3
, and
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is
Q.
True statement for the acids of phosphorus
H
3
P
O
2
,
H
3
P
O
3
and
H
3
P
O
4
is
:
Q.
Assertion :There is a very little difference in acidic strengths of
H
3
P
O
4
,
H
3
P
O
3
and
H
3
P
O
2
.
Reason: Number of unprotonated oxygen
(
=
O
)
responsible for increase of acidic strength due to inductive effect remains the same.
Q.
The true statement for the acids of phosphorus,
H
3
P
O
2
,
H
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P
O
3
and
H
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P
O
4
is :
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