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Byju's Answer
Standard XII
Chemistry
Oxyacids of Phosphorus
Pyrophosphori...
Question
Pyrophosphoric acid is the mixture of
:
A
H
3
P
O
3
+
H
P
O
3
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B
H
3
P
O
4
+
H
3
P
O
3
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C
H
3
P
O
4
+
H
P
O
3
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D
none of these
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Solution
The correct option is
B
H
3
P
O
4
+
H
P
O
3
H
3
P
O
4
+
H
P
O
3
→
H
4
P
2
O
7
pyrophosphoric acid
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0
Similar questions
Q.
The oxo-acids of
P
2
O
5
are
H
3
P
O
4
,
H
4
P
2
O
7
,
H
P
O
3
, and
H
3
P
O
3
Q.
Find the oxidation number of elements in each case :
P
in
H
3
P
O
4
,
H
3
P
O
3
,
H
P
O
3
,
P
2
O
5
and
P
H
3
.
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
H
4
P
2
O
6
is
Q.
For
H
3
P
O
3
and
H
3
P
O
4
, the correct choice is:
Q.
Assertion :Both
H
3
P
O
3
and
H
3
P
O
4
have the same number of hydrogen atoms but
H
3
P
O
4
is a tribasic acid and
H
3
P
O
3
is a dibasic acid Reason: 1 mole of
H
3
P
O
3
is neutralised by 2 moles of
N
a
O
H
while 1 mole of
H
3
P
O
4
is neutralised by 3 moles of
N
a
O
H
.
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