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Byju's Answer
Standard XII
Chemistry
Oxidising Reagent and Reducing Reagent
Equivalent ma...
Question
Equivalent mass of
C
u
2
S
in a redox change forming
C
u
2
+
and
S
4
+
is
M
x
. Here, the value of
x
is
:
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Solution
Reaction:
C
u
2
S
→
C
u
+
2
+
S
+
4
+1 -2 +2 +4
As we know, Eq. wt
=
m
o
l
a
r
w
t
.
n
−
f
a
c
t
o
r
=
M
(
2
×
1
)
+
6
=
M
8
.
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Similar questions
Q.
When
C
u
2
S
is converted into
C
u
2
+
and
S
O
2
, then equivalent weight of
C
u
2
S
will be:
[M = molecular weight of
C
u
2
S
]
Q.
The equivalent weight of
C
u
2
S
(
m
o
l
.
w
t
.
=
M
)
in the following reaction is:
C
u
2
S
+
4
M
n
O
4
⟶
C
u
2
+
S
O
2
+
M
n
2
+
Q.
The equivalent mass of
A
s
2
O
3
in the change,
A
s
3
+
2
⟶
A
s
5
+
2
is
M
x
. Here, the value of
x
is
:
Q.
In
F
e
C
2
O
4
⟶
F
e
3
+
+
C
O
2
, the equivalent mass of
F
e
C
2
O
4
is
M
x
. Here, the value of
x
is
:
Q.
The mixture of
C
u
S
(molar weight =
M
1
) and
C
u
2
S
(molecular weight =
M
2
) is oxidised by
K
M
n
O
4
(molecular weight =
M
4
) in acidic medium, the product obtained are
C
u
2
+
and
S
O
2
+
. The equivalent weights of
C
u
S
,
C
u
2
S
and
K
M
n
O
4
respectively, are
:
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