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Question
Chemistry
The incorrect statement in respect of Chromyl chloride test is
Q. The incorrect statement in respect of Chromyl chloride test is
2089
242
KCET
KCET 2009
The d-and f-Block Elements
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A
formation of Chromyl chloride
14%
B
liberation of Chlorine
60%
C
formation of red vapours
12%
D
formation of lead chromate
14%
Solution:
4
N
a
Cl
+
K
2
C
r
2
O
7
+
3
H
2
S
O
4
⟶
K
2
S
O
4
+
2
N
a
2
S
O
4
+
chromyl chloride(reddish brown vapour)
2
C
r
O
2
C
l
2
↑
+
3
H
2
O
C
r
O
2
C
l
2
+
4
N
a
O
H
⟶
2
N
a
Cl
+
N
a
2
C
r
O
4
+
2
H
2
O
N
a
2
C
r
O
4
+
(
C
H
3
COO
)
2
P
b
⟶
2
C
H
3
COON
a
+
lead chromate
P
b
C
r
O
4