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Standard XII
Chemistry
Reactions of Sulphuric Acid
The weight of...
Question
The weight of KMnO4 that can oxidise 100 ml of 0.2 M oxalic acid in acidic medium
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Q.
Assertion :The volume of 0.1M
K
M
n
O
4
required to oxidise 20 ml of 0.1 M oxalic acid in acidic medium is 20 ml. Reason: 2 moles of
K
M
n
O
4
= 5 moles of oxalic acid in acidic medium reaction.
Q.
100
mL of
0.01
M
K
M
n
O
4
oxidised
100
mL
H
2
O
2
in acidic medium. The volume of same
K
M
n
O
4
required in strong alkaline medium to oxidise
100
mL of same
H
2
O
2
is :
Q.
6.3
gram of oxalic acid,
0.4
mole of oxalic acid and
0.2
gram equivalents of oxalic acid are dissolved in a
2
litre solution.
50
ml of this solution neutralises
20
ml of
K
M
n
O
4
solution in acidic medium. Molarity of
K
M
n
O
4
solution is:
Q.
Pottasium acid oxalate,
K
2
C
2
O
4
.3
H
2
C
2
O
4
.4
H
2
O
can be oxidized by
K
M
n
O
4
in acid medium. Calculate the volume (in mL) of
0.1
M
K
M
n
O
4
that reacts with one gram of the acid oxalate in acidic medium.
Q.
Volume of 0.1 M
K
M
n
O
4
, required to oxidise completely 50 ml of 0.5 M ferrous oxalate solution in acidic medium will be:
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