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The p-Block Elements
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Oxoacids of Phosphorus
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Equivalent weight of H3PO4 in each of th
Question
Equivalent weight of
H
3
P
O
4
in each of the reaction will be respectively:
H
3
P
O
4
+
O
H
−
→
H
2
P
O
4
−
+
H
2
O
H
3
P
O
4
+
2
O
H
−
→
H
P
O
4
2
−
+
2
H
2
O
H
3
P
O
4
+
3
O
H
−
→
P
O
4
3
−
+
3
H
2
O
A
98, 49, 32.67
B
49, 98, 32.67
C
98, 32.67, 49
D
32.67, 49, 98
Medium
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Updated on : 2022-09-05
Solution
Verified by Toppr
Correct option is A)
E
q
u
i
v
a
l
e
n
t
w
e
i
g
h
t
=
N
u
m
b
e
r
o
f
E
q
u
i
v
a
l
e
n
t
s
M
o
l
e
c
u
l
a
r
w
e
i
g
h
t
In case of:
H
3
P
O
4
+
O
H
−
→
H
2
P
O
4
−
+
H
2
O
H
+
ions given = 1
Thus the number of equiv
=
1
E
q
u
i
v
a
l
e
n
t
w
e
i
g
h
t
=
1
9
8
=
9
8
In case of:
H
3
P
O
4
+
2
O
H
−
→
H
P
O
4
2
−
+
2
H
2
O
H
+
ions given = 2
Thus the number of equiv
=
2
E
q
u
i
v
a
l
e
n
t
w
e
i
g
h
t
=
2
9
8
=
4
9
In case of:
H
3
P
O
4
+
3
O
H
−
→
P
O
4
3
−
+
3
H
2
O
H
+
ions given = 3
Thus the number of equiv
=
3
E
q
u
i
v
a
l
e
n
t
w
e
i
g
h
t
=
3
9
8
=
3
2
.
6
7
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