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Byju's Answer
Standard XII
Chemistry
Introduction to Oxidation and Reduction
N2H4 reduces ...
Question
N
2
H
4
reduces
I
O
−
3
to
I
+
in acidic medium:
N
2
H
4
+
I
O
−
3
+
H
+
⟶
N
2
+
I
+
+
H
2
O
Equivalent mass of
N
2
H
4
(molar mass = 32g mol
−
1
) is
:
A
32
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B
16
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C
8
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D
24
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Solution
The correct option is
A
8
N
2
H
4
⟶
N
2
−
2
0
N is changing oxidation state from -2 to zero so total loss in electron is 4 for 2 N- atom of the molecule.
Equivalent mass
=
M
w
4
=
32
4
=
8
.
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0
Similar questions
Q.
N
2
H
4
reduces
I
O
−
3
to
I
+
in acidic medium as
N
2
H
4
+
I
O
−
3
+
H
+
⟶
N
2
+
I
+
+
H
2
O
N
2
H
4
is oxidised to
N
2
. Both
N
−
atom in
N
2
are from
N
2
H
4
. It can be verified by
:
Q.
N
2
H
4
reduces
I
O
−
3
to
I
+
in acidic medium as :
N
2
H
4
+
I
O
−
3
+
H
+
⟶
N
2
+
I
+
+
H
2
O
Intermediate in the above reaction is
I
2
which can be detected by :
Q.
Assertion :Equivalent mass of
N
2
H
4
is 8 in acidic medium or basic medium Reason: It is oxidised to
N
2
with loss of four electron per
N
2
H
4
unit
Q.
In the following reaction, hydrazine is oxidised to
N
2
.
N
2
H
4
+
O
H
−
→
N
2
+
H
2
O
+
e
−
.
The equivalent mass of
N
2
H
4
(hydrazine) is:
Q.
The equivalent mass of
N
2
H
4
in the change,
N
2
H
4
⟶
N
2
is:
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