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JEE Main 18 March 2021 Shift 2 Solved Paper
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© examsnet.com
Question : 32
Total: 90
In basic medium,
H
2
O
2
exhibits which of the following reactions ?
A.
M
n
2
+
→
M
n
4
+
B.
I
2
→
I
−
C.
P
b
S
→
P
b
S
O
4
Choose the most appropriate answer from the options given below.
[18 Mar 2021 Shift 2]
A
and
C
Only A
B Only
A
and
B
Validate
Solution:
In basic medium, oxidising action of
H
2
O
2
M
n
2
+
+
H
2
O
2
⟶
M
n
4
+
+
2
O
H
−
In basic medium, reducing action of
H
2
O
2
I
2
+
H
2
O
2
+
2
O
H
−
⟶
2
I
−
+
2
H
2
O
+
O
2
In acidic medium, oxidising action of
H
2
O
2
P
b
S
(
s
)
+
4
H
2
O
2
(
a
q
)
⟶
P
b
S
O
4
(
s
)
+
4
H
2
O
(
l
)
Thus, in basic medium
H
2
O
2
exhibits reaction '
A
' and '
B
'
Hence, correct option is (d).
© examsnet.com
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