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JEE Questions for Chemistry The D And F Block Elements Quiz 12 - MCQExams.com
JEE
Chemistry
The D And F Block Elements
Quiz 12
In the standardization of Na
2
S
2
O
3
using K
2
Cr
2
O
7
by iodometry, the equivalent weight of K
2
Cr
2
O
7
is
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0%
(Molecular weight )/2
0%
(Molecular weight ) /6
0%
(Molecular weight )/3
0%
Same as molecular weight
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0%
3, 5, 4 and 1
0%
4, 3, 1 and 5
0%
1, 3, 4 and 5
0%
5, 4, 3 and 1
In alkaline condition, KMnO
4
reacts as 2KMnO
4
+ 2KOH → 2K
2
MNO
4
+ H
2
+ O The equivalent weight of KMnO
4
would be(At. mass of K=39, Mn=55, O=16)
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0%
158.0
0%
79.0
0%
52.7
0%
31.6
The strength as oxidising agents of the following species in acidic solution decreases in the order
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0%
0%
2)
0%
0%
0:0:1
1
2
3
4
1
2
3
4
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