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Tardigrade
Question
Chemistry
4K2Cr2O7 xrightarrow textheat 4K2CrO4 + 3O2 + X In the above reaction X is:
Q.
4
K
2
C
r
2
O
7
heat
4
K
2
C
r
O
4
+
3
O
2
+
X
In the above reaction
X
is:
1713
205
Manipal
Manipal 2005
The d-and f-Block Elements
Report Error
A
C
r
O
3
16%
B
C
r
2
O
7
20%
C
C
r
2
O
3
49%
D
C
r
O
5
16%
Solution:
Potassium dichromate, on heating gives oxygen and chromic oxide
(
C
r
2
O
3
)
.
4
K
2
C
r
2
O
7
Δ
4
K
2
C
r
O
4
+
3
O
2
+
2
C
r
2
O
3