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Byju's Answer
Standard XII
Chemistry
Oxyacids of Phosphorus
Equivalent we...
Question
Equivalent weight of potassium permanganate in alkaline medium is:
A
m
o
l
e
c
u
l
a
r
w
e
i
g
h
t
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B
m
o
l
e
c
u
l
a
r
w
e
i
g
h
t
3
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C
m
o
l
e
c
u
l
a
r
w
e
i
g
h
t
5
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D
m
o
l
e
c
u
l
a
r
w
e
i
g
h
t
6
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Solution
The correct option is
A
m
o
l
e
c
u
l
a
r
w
e
i
g
h
t
The reaction in alkaline medium is:
K
M
n
O
4
+
1
e
−
→
K
2
M
n
O
4
Thus, n factor is 1.
E
q
u
i
v
a
l
e
n
t
w
e
i
g
h
t
=
m
o
l
e
c
u
l
a
r
w
e
i
g
h
t
n
−
f
a
c
t
o
r
⇒
m
o
l
e
c
u
l
a
r
w
e
i
g
h
t
1
Hence, the equivalent weight of potassium permanganate in alkaline medium is
m
o
l
e
c
u
l
a
r
w
e
i
g
h
t
1
.
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Similar questions
Q.
Equivalent weight of
:
(a)
H
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2
=
m
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1
(b)
H
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(c)
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If true enter 1, else enter 0.
Q.
The equivalent mass of potassium permanganate in alkaline medium is:
Q.
Assertion :Equivalent weight of
N
H
3
in the reaction ,
N
2
→
N
H
3
is 17/3 while that of
N
2
is 28/6. Reason: Equivalent weight
=
Molecular weight
Number of electrons lost or gained per molecule
Q.
In the following reaction:
2
N
H
3
⟶
N
2
+
2
N
H
3
Equivalent weight of
N
H
3
is
=
M
o
l
e
c
u
l
a
r
w
e
i
g
h
t
y
What is the value of
y
?
Q.
Assertion :Equivalent weight of a base
=
M
o
l
e
c
u
l
a
r
w
e
i
g
h
t
A
c
i
d
i
t
y
. Reason: Acidity is the number of replaceable hydrogen atoms in one molecule of the base.
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