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Question
Chemistry
In neutral or faintly alkaline medium, thiosulphate is quantitatively oxidized by KMnO4 to
Q. In neutral or faintly alkaline medium, thiosulphate is quantitatively oxidized by
K
M
n
O
4
to
4206
192
KEAM
KEAM 2013
The d-and f-Block Elements
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A
S
O
3
2
−
10%
B
S
O
4
2
−
80%
C
S
O
2
10%
D
S
O
5
2
−
0%
E
S
2
O
8
2
−
0%
Solution:
In neutral or alkaline mediunt, thiosuphate is quantitavely oxidized by
K
M
n
O
4
to
S
O
4
2
−
8
M
n
O
4
−
+
3
S
2
O
3
2
−
+
H
2
O
→
8
M
n
O
2
+
6
S
O
4
2
−
+
2
O
H
−