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Question
Chemistry
Potassium dichromate in acidic solution reacts with Fe2+ gives
Q. Potassium dichromate in acidic solution reacts with
F
e
2
+
gives
7108
222
AMU
AMU 2011
The d-and f-Block Elements
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A
C
r
3
+
+
n
H
2
O
100%
B
C
r
+
+
n
H
2
O
0%
C
C
r
2
+
+
n
H
2
O
0%
D
C
r
0
+
n
H
2
O
0%
Solution:
Potassium dichromate in acidic solution reacts with
F
e
2
+
gives
C
r
3
+
and water.
6
F
e
2
+
+
2
C
r
2
O
7
2
−
14
H
+
→
6
F
e
3
+
+
2
C
r
3
+
+
7
H
2
O