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Class 11 NEET Chemistry Redox Reactions Questions
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© examsnet.com
Question : 10
Total: 27
Consider the change in oxidation state of Bromine corresponding to different emf values as shown in the diagram below
Then the species undergoing disproportionation is
[NEET 2018]
B
r
O
3
−
B
r
O
4
−
HBrO
B
r
2
Validate
Solution:
👈: Video Solution
+
1
H
B
r
O
→
B
0
r
2
,
E
H
B
r
O
/
B
r
2
o
=
1.595
V
+
1
H
B
r
O
→
+
5
B
r
O
3
−
,
E
B
r
O
3
−
/
H
B
r
O
o
=
1.5
V
E
cell
o
for the disproportionation of HBrO,
E
cell
o
=
E
H
B
r
O
/
B
r
2
o
−
E
B
r
O
3
−
/
H
B
r
O
o
=
1.595
−
1.5
=
0.095
V
=
+
v
e
Hence, option (3) is correct answer
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