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NEET 2019 Physics and Chemistry
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© examsnet.com
Question : 8
Total: 90
Which of the following reactions are disproportionation reaction?
(a)
2
C
u
+
→
C
u
2
+
+
C
u
0
(b)
3
M
n
O
4
2
−
+
4
H
+
→
2
M
n
O
4
−
+
M
n
O
2
+
2
H
2
O
(c)
2
K
M
n
O
4
Δ
→
K
2
M
n
O
4
+
M
n
O
2
+
O
2
(d)
2
M
n
O
4
−
+
3
M
n
2
+
+
2
H
2
O
→
5
M
n
O
2
+
4
H
⊕
Select the correct option from the following
[NEET 2019]
(a), (b) and (c)
(a), (c) and (d)
(a) and (d) only
(a) and (b) only
Validate
Solution:
👈: Video Solution
(a)
2
+
1
C
u
+
→
+
2
C
u
2
+
+
0
C
u
0
Disproportionation
(b)
3
+
6
M
n
O
4
2
−
+
4
H
+
→
2
+
7
M
n
O
4
−
+
+
4
M
n
O
2
+
2
H
2
O
Disproportionation
(c)
2
+
7
K
M
n
O
4
Δ
→
+
6
K
2
M
n
O
4
+
+
4
M
n
O
2
+
0
O
2
∴ Not a disproportionation
(d)
2
+
7
M
n
O
4
−
+
3
+
2
M
n
2
+
+
2
H
2
O
→
5
+
4
M
n
O
2
+
4
H
⊕
© examsnet.com
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