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Byju's Answer
Standard XII
Chemistry
Hydrochloric Acid
When H2O2is...
Question
When
H
2
O
2
is added to an acidified solution of
K
2
C
r
2
O
7
:
A
solution turns green due to formation of
C
r
2
O
3
.
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B
solution turns yellow due to formation of
K
2
C
r
O
4
.
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C
a deep blue-violet colored compound
C
r
O
(
O
2
)
2
is formed.
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D
solution gives green ppt. of
C
r
(
O
H
)
3
.
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Solution
The correct option is
C
a deep blue-violet colored compound
C
r
O
(
O
2
)
2
is formed.
A deep blue layer is formed due to
C
r
O
(
O
2
)
2
is present in product.
C
r
2
O
2
−
7
+
2
H
+
+
4
H
2
O
2
→
2
C
r
O
(
O
2
)
2
+
5
H
2
O
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