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Byju's Answer
Standard XII
Chemistry
Reductions Involving Aldehydes or Ketones
The Eo for ...
Question
The
E
o
for the reaction
H
2
O
2
→
2
H
+
+
O
2
+
2
e
−
is
−
0.68
V
.
Which nature of
H
2
O
2
does the above reaction represent?
A
Bleaching
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B
Acidic
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C
Reducing
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D
Oxidising
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Solution
The correct option is
C
Reducing
The loss of electron is called oxidation, while the gain of electron is called reduction.
The species which loses an electron or gets oxidized reduces the other species.
H
2
O
2
→
2
H
+
+
O
2
+
2
e
−
In the above reaction, hydrogen peroxide loses its electron and so, it shows its reducing nature.
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Similar questions
Q.
H
2
O
2
→
2
H
+
+
O
2
+
2
¯
e
;
E
∘
=
−
0.68
V
. The above equation represents the following nature of
H
2
O
2
Q.
In which of the following reactions,
H
2
O
2
acts as reducing agent?
(A)
H
2
O
2
+
2
H
+
+
2
e
−
→
2
H
2
O
(B)
H
2
O
2
−
2
e
−
→
O
2
+
2
H
+
(C)
H
2
O
2
+
2
e
−
→
2
O
H
−
(D)
H
2
O
2
+
2
O
H
−
2
e
−
→
O
2
+
2
H
2
O
.
Q.
In which of the following reactions
H
2
O
2
acts as a reducing agent?
Q.
In which of the following reactions
H
2
O
2
acts as a reducing agent?
(a)
H
2
O
2
+
2
H
+
+
2
e
→
2
H
2
O
(b)
H
2
O
2
−
2
e
→
O
2
+
2
H
+
(c)
H
2
O
2
+
2
e
→
2
(
O
H
−
)
(d)
H
2
O
2
+
2
O
H
−
−
2
e
→
O
2
+
2
H
2
O
Q.
In which of the following reaction
H
2
O
2
acts as a reducing agent?
(a)
H
2
O
2
+
2
H
+
+
2
e
−
→
2
H
2
O
(b)
H
2
O
2
−
2
e
−
→
O
2
+
2
H
+
(c)
H
2
O
2
+
2
e
−
→
2
O
H
−
(d)
H
2
O
2
+
2
O
H
−
−
2
e
−
→
O
2
+
2
H
2
O
.
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