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Standard XII
Chemistry
Carbon Dioxide
Question
Oxalic acid is heated with concentrated
H
2
S
O
4
. When the resultant gases are passed over red hot carbon,
X
is obtained. Here,
X
is:
C
H
4
C
2
H
4
C
O
C
O
2
A
C
H
4
B
C
O
C
C
2
H
4
D
C
O
2
Open in App
Solution
Verified by Toppr
(
C
O
O
H
)
2
+
H
2
S
O
4
(
l
)
→
H
2
O
+
C
O
2
(
g
)
+
C
O
(
g
)
+
H
2
S
O
4
(
l
)
When oxalic acid is heated with conc. sulfuric acid, a mixture of
C
O
and
C
O
2
is obtained.
H
2
C
2
O
4
H
2
S
O
4
−
−−−
→
−
H
2
O
C
O
+
C
O
2
When this mixture is passed over red hot carbon,
C
O
2
is reduced to
C
O
.
C
O
+
C
O
2
C
−
→
Δ
3
C
O
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