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JEE Main Chemistry Class 12 Analytical Chemistry Questions
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© examsnet.com
Question : 23
Total: 106
In acidic medium,
K
2
Cr
2
O
7
shows oxidising action as represented in the half reaction
Cr
2
O
7
2
−
+
XH
+
+
Ye
−
⟶
2
A
+
ZH
2
O
X
,
Y
,
Z
and
A
are respectively are:
[1-Feb-2024 Shift 1]
8
,
6
,
4
and
Cr
2
O
3
14
,
7
,
6
and
Cr
3
+
8
,
4
,
6
and
Cr
2
O
3
14
,
6
,
7
and
Cr
3
+
Validate
Solution:
The balanced reaction is,
Cr
2
O
7
2
−
+
14
H
+
+
6
e
−
⟶
2
Cr
3
+
+
7
H
2
O
X
=
14
Y
=
6
A
=
7
© examsnet.com
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