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Question
Chemistry
For decolourisation of 1 mole of acidified KMnO4 the moles of H2O2 required are
Q. For decolourisation of
1
mole of acidified
K
M
n
O
4
the moles of
H
2
O
2
required are
3302
175
AIIMS
AIIMS 1980
Redox Reactions
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A
1/2
7%
B
3/2
16%
C
5/2
71%
D
7/2
6%
Solution:
H
2
O
2
reduces acidified
K
M
n
O
4
to colourless
M
n
S
O
4
.
2
m
o
l
of
K
M
n
O
4
oxidise
5
m
o
l
of
H
2
O
2
∴
1
m
o
l
of
K
M
n
O
4
will oxidise
2
5
m
o
l
of
H
2
O
2
.
