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Byju's Answer
Standard XII
Chemistry
Potassium Dichromate
Complete and ...
Question
Complete and balance reaction of the given reaction is:
C
r
2
O
2
−
7
+
C
2
H
4
O
⟶
C
2
H
4
O
2
+
C
r
3
+
A
C
r
O
2
−
7
+
3
C
2
H
4
O
+
8
H
+
→
3
C
2
H
4
O
2
+
2
C
r
3
+
+
4
H
2
O
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B
C
r
O
2
−
7
+
5
C
2
H
4
O
+
4
H
+
→
6
C
2
H
4
O
2
+
2
C
r
3
+
+
4
H
2
O
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C
C
r
O
2
−
7
+
5
C
2
H
4
O
+
4
H
+
→
3
C
2
H
4
O
2
+
2
C
r
3
+
+
4
H
2
O
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D
None of these
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Solution
The correct option is
C
C
r
O
2
−
7
+
3
C
2
H
4
O
+
8
H
+
→
3
C
2
H
4
O
2
+
2
C
r
3
+
+
4
H
2
O
C
r
2
O
2
−
7
+
3
C
2
H
4
O
+
8
H
+
→
3
C
2
H
4
O
2
+
2
C
r
3
+
+
4
H
2
O
Hence,option A is correct.
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Similar questions
Q.
Balance the following equations by ion electron method.
a.
C
r
2
O
2
−
7
+
C
2
H
4
O
+
H
⊕
⟶
2
C
r
3
+
+
C
2
H
4
O
2
+
H
2
O
b.
C
u
2
O
+
H
⊕
+
N
O
⊖
3
⟶
C
u
2
+
+
N
O
+
H
2
O
Q.
Write correctly balanced half reaction and overall equation for the following skeletal equation :
A)
N
O
−
3
+
B
i
(
s
)
→
B
i
3
+
+
N
O
2
(in acid solution)
B)
F
e
(
O
H
)
3
(
s
)
+
H
2
O
2
→
F
e
(
O
H
)
2
(
s
)
+
H
2
O
+
O
2
(in basic medium)
C)
C
r
2
O
2
−
7
+
C
2
H
4
O
→
C
2
H
4
O
2
+
C
r
3
+
(in acid solution)
Q.
Choose correct statement(s) regarding the following reaction.
C
r
2
O
2
−
7
(
a
q
)
+
3
S
O
2
−
3
(
a
q
)
+
8
H
+
⟶
2
C
r
3
+
(
a
q
)
+
3
S
O
2
−
4
(
a
q
)
+
4
H
2
O
Q.
Balance the following equation by ion electron method:
C
r
2
O
2
−
7
+
C
2
H
4
O
+
H
+
→
2
C
r
3
+
+
C
2
H
4
O
2
+
H
2
O
Q.
The compound having the molecular formula
C
2
H
4
O
2
is a :
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